What a load of complete HOGWASH. You obviously have zero idea on how copyright works. I suggest going and doing some research before coming back to play with the adults. Seriously!
And then on top of that you have the hostility between EA and 2K. EA tries to buy 2K (a couple years ago). EA is foiled by 2K. EA is angry at 2K. EA will do anything to put a stick in 2K's plans. EA is NOT going to let a similar game to an IP they already own.
If Sid even attempts to make something that could be deemed similar to Alpha Centauri, in either name, gameplay, idea or even if some of the concepts are used from AC, then EA will be over them like a rash. It's how BUSINESS works. Forget the customers. EA will do anything to screw over 2K. That's how BUSINESS works.