Below is a comment from Take Two on whether they think fans would wait for a second "optimized" version of GTA V:

"There is not one gamer who is going to sit out of GTA V hoping that something that is going to come along down the road that's better. It's going to blow everyone away, and it's going to be in the market in September," he said, when questioned whether there might be a "dual-generation launch" for the game due to the proximity of its release date to Sony and Microsoft's presumed Fall console launches."

Does this mean that GTA V could get a "Dual-generation launch"? I guess we will have to wait and see. More info on this soon.