From your avatar and your opinions, I can see that you probably harbor much resentment for Cyclops' treatment in the films, especially X3. In light of that, it's reasonable that you would have the thoughts about his future involvement that you have. However, I think that not further exploring what really happened at Alkali Lake and incorporating that into a grander storyline for Cyclops would be a grave mistake as it would possibly open a sizable plothole for the series, all for the reasons I stated in my previous post.
In addition, though I don't believe you were being wholly serious about the writers having Logan replace Scott in the whole Sinister/Madelyne/Cable storyline, I'll entertain it for a moment, starting with X3.
Logan "replacing" Scott in this altered Phoenix saga works more in the context of the series' story because indirectly, it finally shows him being more than a reluctant team member and capable of handling a leadership role, and more importantly, it shows how very different and dangerous Jean is from the beginning. Moreover, it gives some sort of closure to Logan fawning over Jean, who doesn't and probably won't ever fully reciprocate his same feelings.
Logan "replacing" Scott in a Sinister/Madelyne Pryor/Cable storyline is likely to be less effective for a number of reasons:
- The Sinister/Madelyne Pryor/Cable storyline is arguably more adaptable than the Phoenix storyline, so there shouldn't be any need to alter it far beyond what's in the comics.
- If I'm not mistaken, Sinister can only be hurt by Cyclops' beams (or the Summers' family in general). Given what may transpire from the Alkali Lake incident to Cyclops being able to take action against Sinister, seeing him finally let loose like every other character has, in a major storyline revolving around him no less, would be appropriate and exciting. Given Sinister's regenerative capabilities, Wolverine going into a berserker rage would probably just make Sinister laugh at him.
- Logan's arc is largely resolved. He's gained some understanding of his past, he's learned how to be a more effective team member, and he's likely past wanting to be loved by Jean, and if he hasn't achieved the latter, introducing Scott with Madelyne would bring about an interesting dramatic circumstance that should close that book.
- This is mostly conditional, but I believe that the prequels are being made to set up more epic sequels by expanding the X-Men universe and developing the characters within it to avoid having to do so in the sequels. In relevance to this list, I think that Sinister is likely to play a role in X-Men: First Class to mirror his involvement with Scott since Scott's childhood in the comics. If my belief is true, that makes Scott being involved in the Sinister/Madelyne Pryor/Cable storyline all the more stronger, and Logan "replacing" him rather random and more unwarranted.
Still, I guess we'll have to wait and see.
On the note of the actual topic, it doesn't matter to me who directs, as long as the story progresses in an interesting fashion and the film has an appropriate amount of character development and action.