64 bit not a word of war. It's just an old beaten down topic that wore out its welcome, because we know that it's not gonna happen with Sins 1.
You do have to give the Dev's credit for stretching this 32 bit engine as far as they could, and for the support they have given over the years. Rebellion is almost at the point to where you really don't need TSOP any more. The dev's are finding more ways to optimize with each update. The current Rebellion version of TSOP pretty much just converts the TGA textures to DDS format, and focus's on graphic optimization only. So that you can play longer before you hit the usual late game CPU lag. You can find the latest version of TSOP here
You can also use strike craft auto launch, and recover mods on top of TSOP. Which will help the late game lag issue some more.
All this is kinda off topic, but i just wanted to point it out, and un-hijack this thread.