I voted: "I don't have 64 bit, I don't care".
I not only don't have 64 bit, now; but I don't expect to have it within the near term (say the next 6 months). (Of course, if I live long enough, who knows ??
... although, I swear, Apple PC's are looking better and better.)
By the same token, I would not wish to limit anyone else's enjoyment. Each person should get the best game they can, dependent on what Stardock can afford to offer them. On the other hand, I would tend to agree with what I think Blackmantle and Bellack are suggesting above -- I want to see the current version fixed, and finished, and polished first. Then I would certainly have no objection to Stardock extending the franchise, any way they want ! And may the Deities of Computer Programming smile upon them ...