But you didn't like the idea, if I recall. Cyclops not being the leader of the team was just one of the flaws of X3, that I thought could've been dealt with better. I didn't have that much of a problem with Wolverine taking his place. Even though he gets enough popularity as it is in the comics. I don't want to talk about X3, because this isn't the place to do so.
Lucius' death is just speculation as opposed to fans wanting the Dawes character killed off. Again, we DON'T know what will happen with any of the characters in the sequel. That's why the board's are there, for everyone to express how they feel about a certain topic. And it's ok to do so, until it's finally confirmed. Even if Fox has yet to die in the comics, it's not like Rachel was an actual character from any of the books. Comic film adaptions may not always follow up to their original concepts, but that's only a question of who is behind the project.