Yang and Blake become partners in Episode 6 (later becoming a full team when they join with Ruby and Weiss). Going by the lyrics of 'Red Like Roses', that makes them the Beauty and the Beast.
Making another fairy tale duo, Weiss and Ruby's names and partnership make them Snow-White and Rose-Red. This lets Team RWBY allude to six different fairy tales with only four members.
The girls are inspired by seemingly unrelated tales. However, each tale involves a girl, a house, and a potentially dangerous creature within. Red Riding Hood has her grandma's house and the Big Bad Wolf, Snow White has the Seven Dwarves' cottage, Belle has the Beast's mansion, and Goldilocks has the house with the Three Bears.
In episode 11, Ruby eats cookies while Weiss eats an apple. Rather appropriate, given their respective Fairytale Motifs.
The academies that train people to fight the monsters threatening civilization are called "Signal", "Beacon," and "Sanctum", which reference the "points of light" idea of an Adventure-Friendly World where isolated cities fight against the darkness.
A further connection between Weiss and her inspiration, Snow White: Mines. Dust is implied to be harvested from the earth (see the crystals it's sold as in Episode 1), and Weiss's family own Dust mines/process the substance. Snow White traveled to a mine and helped the workers there.
Ruby's weapon of choice is a Sinister Scythe, which is often associated with the Grim Reaper. The monsters are collectively known as the Grimm. Overall, many characters and creatures hail from stories written by The Brothers Grimm.
Pyrrha didn't use any recoil from her weapon to slow her descent, and just smashed through everything until she stopped. While this in itself is a viable strategy, it makes more sense given that she was intending to help Jaune all along. Since he was just falling, with nothing stopping him, she couldn't slow herself down and still land in time.
The lyric "And victory is in a simple soul" takes on an additionally optimistic tone after having learned that the Grimm are The Soulless, lacking even the simplest of souls and, consequently, victory. And given Episode 1's narration which ends with Ozpin commenting that perhaps the answer lies with a simpler, more innocent soul. Aura, used in combat, draws power from your soul. Victory is LITERALLY dependent on your soul, not just metaphorically.
The white flash whenever a human character is struck by one of the powerful blows being thrown around in the Yellow trailer is, in retrospect, clearly their aura defending them from lethal damage.
The By the Lights of Their Eyes sequence in episode seven was just a funny gag, right? Well, eyes are generally considered windows to the soul, and the soul is the source of Aura...
The girls' eye colours seem to reflect the next member of the team colour-wise. the only exception being Weiss, cause black eyes would just look weird. Yang would also be an exception, except her eyes turn red in her super form, making it all come full circle...sort of.
In the Yellow Trailer, Yang fights two girls who likely represent Snow-White and Rose-Red; fitting as, in their fairy tale, their ally was a bear.
Cardin's meaningful name explained by darkstarsabre on reddit:
"People have picked up on the Winchester part and the firearms being used in colonial activities - largely alluding to his treatment of faunus. But something much more interesting for you to consider. Henry Beaufort. The Cardinal of Winchester who presided at the trial of Joan of Arc."
Jaune faked his way into Beacon, explaining his initial incompetence, his Boring, but Practical sword and shield as opposed to the Crazy mix-and-match weapons of the rest of Beacon's student body (and his surprise at Ruby's Crescent Rose being custom-made), his extremely casual clothing (underneath his armor, he's just wearing a sweatshirt, jeans, and sneakers), and the fact that he didn't recognize Pyrrha except by a cereal box advertisement.
We learn in Forever Fall Part 2 that Pyrrha can control magnetism, which explains quite a bit.
Her absurd accuracy with a thrown spear, as well as how she's used her shield, starts to make sense now.
It also explains why using a weapon she throws away in combat isn't suicidal; Indeed, a Freeze-Frame Bonus in Players and Pieces you can see Milo hover up to Pyrrha's hand with the magnetic sound effect when she gets launched over the Death Stalker.
It may also explain why she took to Jaune so fast: there are theories that a human body produces an electromagnetic aura. If she and Jaune are emitting opposite frequencies, it may just be a case a "opposites attract."
Her magnetism may explain how she's touted as the strongest fighter, but still have difficulty fighting monsters. Being able to control metal (and weapons) almost guarantees victory against human opponents, not so much against monsters in open forest areas.
This basically makes her invincible to any Non-Grimm opponent. Why? Because all the weapons we've seen so far are metal. If she can create enough magnetic force to make Juane move his shield in the opposite direction he wants to move it, AND against gravity, she can "magnetize" any weapon to slam right into the ground, rendering it almost entirely useless. The only people who actually threaten her are Yang( her style revolves around physical fighting and she's damn fast without her gloves giving her kickback), Nora (who is strong enough to lift her impractically cool weapon and absorb it's kickback. Odds are, she can pound your face into the pavement.), and Lie Rin (similar story to Yang, but pulls off Chi explosions with his Aura). This is presuming she doesn't use HER weapons, which gives her range equivalent to her line of sight (Rifle/ Spear, and shield she can use a la Captain America). and grabbing her weapons just puts you at risk of her tossing you into the air or slamming you into the ground with it.
She'd completely render Penny useless, metal swords on string stuck in the ground don't do you any good, or she can magnetize Penny so her swords are attracted to her. (We don't know if impalement HURTS Penny, but it will inconvenience her that her weapons are stuck)
When Blake gets tired of everyone bickering around her while she's trying to read, she gets everyone to shut up by blowing out her candle, seemingly surrendering her book for some peace and quiet. However, we later find out that she's a Faunus, and that means she can see in the dark, so she likely wasn't losing any reading time at all.
How do cats act towards new people? Cold, stand-offish...but once they realize you're family; they warm up to you. Exactly how Blake acted.
Weiss's refusal to acknowledge that not all Faunas are bad news and Blake's refusal to acknowledge that the White Fang really is show their black and white views of the issue.
Why did Roman run from robbery at first when it's fully possible he could have taken Ruby in a straight fight? Because there was no point in doing so. The container full of dust was lost in the action, leaving him with no reason to do anything but simply book it.
After Blake explains the backstory of the White Fang, it becomes apparent that the song "From Shadows" isn't about Blake, but about the White Fang.
So we know that Ruby associates better with weapons than with people, and what's her gun's last name again? That's right, she named Crescent Rose like a family member.
Even when Jaune stood up to him, Cardin could have continued to blackmail him but didn't. It could be out of respect for saving his life... But there's also the fact that if he made good on his threat, he'd probably be in just as much trouble for the blackmail (and academic dishonesty - plagiarism is a Serious Business for educational institutions - and possibly failing to report Jaune's false credentials). Him threatening to turn Jaune in was essentially a bluff by that point. After seeing him kill the Grimm, Cardin might actually be scared to provoke Jaune now.
Weiss' Fantastic Racism is far more reasonable than that of Team CRDL or Roman Torchwick, and she shows in a subtle but important way: what she calls the Faunus. While others have referred to Faunus as "animals," or "mutts" or "freaks," as derogatory statements to their animal appendages, Weiss never takes this path. Instead, Weiss refers to Faunus (especially those in the White Fang) as "scoundrels," or when referring to the stowaway Sun Wukong, "riff-raff," or "rapscallion" (which, to be fair to Weiss, is not entirely inaccurate). While these can still be considered discriminatory, as pointed out by Blake, it should be noted that the names Weiss calls Faunus are defined by their behavior, not their appearance. In the spirit of Martin Luther King's words, Weiss was the type who would judge a person not by whether or not they had animal-like characteristics, but by the content of their character. This is supported by the fact that she decides to accept the fact that Blake is a Faunus and think of the team first and foremost.
The RWBY "White" trailer was released on February 14, 2013, otherwise known as Valentine's Day. The song featured in the trailer, "Mirror Mirror", makes constant references to being alone. February 14 is also known as Singles Awareness Day.
Blake is the only member of Team RWBY without a real finishing move (Ruby and Yang have their stronger ammo, Weiss has her white setting). Considering her past as a member of the White Fang, her fighting style was probably meant for going up against other people, not monsters, so having a finishing move might have been overkill.
Weiss has a scar on the right side of her face, and uses a fencing sword as her weapon. Fencers were well known for getting scars just to invoke the Rugged Scar trope in real life often making sure they healed 'wrong' so they look better. Though that does invoke some fridge horror at the thought of who might have done it to a teen.
The first actual exam for Beacon Academy involves catapulting several students several hundred feet in the air, into a forest infested with shadow-like beasts, and at least one cavern that is home to a gigantic scorpion. Most of the main cast is Made of Iron, with the exception of Jaune, who had no knowledge of how to use his Aura, the same power that makes the other characters superhuman. What would have happened to Jaune if Pyrrha hadn't gone out of her way to land quickly and save him? Assuming he did survive the fall, he wouldn't have lasted long in that forest. It hasn't been mentioned yet if there have been any students like Jaune who may have been killed during this exam in the past. Beacon does perform some manner of background check on their entrants, but Jaune got in, despite being obviously unprepared, through a so-far vague screening process. This makes even more sense when you find out Jaune faked his papers to get into Beacon. Is the reason Ozpin still accepted him because he knew If he was lying, he would likely die in the first test, anyway? This makes Ozpin's "I'm proud of you" moment sound a lot more sinister.
Weiss explains how her family have been at war with the White Fang for years. Both employees and family friends have died. Given Weiss' remark about wanting bunk beds as a kid, it's possible her parents might have avoided having more children so they'd have fewer targets to protect.
We know that the Schnee Dust Company has been fighting with the White Fang. The latter has committed, theft, kidnapping, and murder. All we know about the former is that they've mistreated Fauna and committed dubious practices. At this point, the Schnee might be the bigger victims, justifying Weiss' anger towards the White Fang.
Weiss says that her father would come home furious everyday, and that it made for a difficult childhood. The way she said this, pounding her fist on the table, and being the highest emotional peak in her rant as she aggressively reacts against discussing it any longer, it almost sounds like Weiss was abused by her father.
The original plan with White Fang was to blow up the train; hence Blake backing out and cutting the train tracks; leaving Adam with....a big shipment of Dust. This occurrence likely led to their current partnership with Roman.
Knowing about the Faunus makes you question the bear head the DJ wore in the "Yellow" trailer. It could be seen as the Faunus equivalent of blackface.