Originally Posted by X-Maniac
I think that 'fixing' things implies a lot more than simply following through with hints already left at the end of X3. If the cure doesn't work, and Xavier survived, then there's no need to 'fix' those things.
there will be a mention of the cure and Xavier i'm sure, otherwise people will be asking what happened to the cure or how did Xavier come back
even if you feel you can make your own mind up with what happened, they will still need to give it a vocal conclusion
i wouldn't be surprised if after the cure failed they created sentinels to hunt down mutants, if thats the case it would still has to be verified vocally for movie goers