Honestly, it's a tough call because I'm likely going to be limited by CPU before I'll be limited by GPU (as I've shown in my latest stress test). It's easy for me to just back down the Ultra+ settings a notch in order to save on VRAM, or I can fully, or partially, separate my SLI setup to get 6GB or even 9GB of total VRAM if necessary.

Even if a 6GB card comes out, I doubt I'll upgrade to it unless EVGA offers it as part of their Step-Up program (which is highly unlikely). I'd rather not have to deal with pulling the GPUs out, removing the backplates, sending them back to Amazon, waiting for a refund, then being able to buy the newer, and more expensive, 6GB variants of the GPU... it'd be a total hassle and there'd be weeks of downtime.

Don't worry once they're out I'll change my mind. >_>