Will went to Magnus about a cure for Jem.If this troper remembers the end correctly, then Jem's had an attack not too long ago and his "illness" is beginning to look like it's going to be a significant plot point. Jem has mentioned that the Shadowhunters have been searching for a cure and never found one, but Will refuses to leave off, and it appears now that Jem's running out of time.
Will is a Time Lord.The cocky attitude and being a weirdness magnet make this guess seem pretty possible. His first encounter with Tessa also makes it obvious. I even this stele is another word for sonic screwdriver.
Will is crazy.Just an idea that was planted in my head after reading Cassie's blog. It actually sounds pretty plausible, thinking back over the book's events.
Jem is mad at Will in the teasers for Clockwork Prince...... because they're lovers and Jem is jealous of Tessa! That, or Will is doing something incredibly stupid that could potentially ruin their relationship. Which, of course, is entirely possible.
Will, not Jem, will die within the course of the series.Just a throw at subverting the Incurable Cough of Death trope.
Magnus and Tessa are Half-siblings.Both of their human mothers were tricked by a demon who could take on the appearance of their husbands!
Word of God said Magnus may have a new boyfriend in Clockwork Prince.My bet's on one of the Lightwood brothers, or Ragnor Fell.
Will is Alec Lightwood's ancestor.
Tessa ends up with Magnus and the scene where she cameos in City of Glass is him breaking up with her.I have nothing to back this up, but the idea just came to me.
Adele is the name of the daughter Henry and Charlotte will.
Will is related to Howl.