The only thing that can ruin it for me is if they change the end of it away from Ender learning how the Buggers saw it and writing that book.
That was in Speaker for the Dead, wasn't it?
I wonder which series they'd follow if they do sequels?
Nope, he wrote the book at the very end of EG after he went to the first colony with his sister. SftD was after he wrote the first book and wrote one for his brother and one other book while wandering through space and then settled on that final planet.