Oh, I hope so! Maybe after they complete the rollout of the app (is it everywhere yet? I've been busy so haven't been able to keep up) and user numbers stabilize somewhat they may be able to bring it back, if not before...

I also didn't know pokevision was technically against their ToS! I used it mainly to see what was around my city where when I was at home and never in the field so I'm not too bummed it's gone.