WMG / Dragon Quest VII

Kiefer was originally intended to become Orgodemir

This was a popular theory in Japan at the time of the game's release based on various pieces of evidence:

• It's a known fact that Dragon Quest VII underwent multiple extended delays during its production, getting pushed back from a projected "summer 1998" release all the way to August 2000. This theory posits that at least part of that extended development time was used to make changes to the game's scenario due to Yuji Horii's dissatisfaction with it.
• Kiefer's departure from the party is notoriously abrupt, and Word of God has confirmed that it was at one point meant to happen later than it did. This supports the notion that the above-mentioned scenario changes were related to Kiefer's character.
• Kiefer and Orgodemir's humanoid form bare a distinct resemblance to one another in terms of build, facial structure, and clothing.
• The plotlines of each of the sealed islands all incorporate the elements tragedy, personal loss, and humans transforming into monsters in some way. None of these factor into the final confrontation with Orgodemir, but they all would rather cleanly were he to be a transformed Kiefer.
• The Ra's Mirror item obtained in the final dungeon reverts enemies that have transformed into their original form but serves no real purpose in the game. The item appears in other games in the series, and almost always serves as an important plot-related item. If Orgodemir were a transformed Kiefer, then its presence in the final dungeon could be explained as it having been intended to be a key item in the battle against him.
• The reason Estard isn't sealed like the rest of the world at the beginning of the game is due to the rather flimsy justification of The Almighty protecting in the hope that its people would someday rise up to free the rest of the world. Estard being Kiefer's birthplace, Orgodemir would have to keep it around if he were Kiefer in order to avoid creating a time paradox that would erase him from existence.

Putting all of this together, it is speculated that the game would culminate in the hero being forced to fight his best friend, who had been corrupted by tragedy to become a monster. This would add more weight to the final scene, where the hero finds a lithograph written by Kiefer shortly after he left the party promising that they would always be friends, and would re-frame the plot at large, which begins with the hero as a fisherman's son dreaming of adventure with his best friend and ends with him choosing to follow in his father's footsteps and become a fisherman, as a bittersweet Coming of Age Story in which the adventure itself is a metaphor for how Growing Up Sucks. The assumption is that this was thought to be too depressing of a note to conclude the game on, which is what led to the scenario getting rewritten, the game being delayed, and the slightly disjointed feel of the story.

There may be a 3DS Remake of Dragon Quest VII

I can understand maybe not putting a DS remake of it, especially with Dragon Quest VI and Dragon Quest V being higher priority...maybe. But the 3DS can handle it. It can even use the 3D effects on the battleground to make it look 3D, retaining the look of the original. However, it'd probably have revamped backgrounds, better cutscenes, and look a bit less...well, fake with the special effects. Add a "Save anywhere" or just stick with the good ol fashioned Quicksaves (or save points) and we could have an epic handheld adventure that'd last for 300 hours on the 3DS.

• Confirmed!
  • Now we have to hope it makes it out of Japan...
    • Confirmed as well, set for a release date over three years after the Japan release. Better late than never!