Conclusive confirmation–Vision does survive the first Infinity War (Avengers 3), and will be filming this month (September 2017) Avengers 4.
I think for both Lizzie and I, it’s the most exciting plotline for each
of us so far. I really loved making the first [Infinity War], we had a
ball doing it, and I’m going back in September to continue and it’s the
biggest production that I’ve been on…ever. It’s just huuuuuuuge.
Those Celestial Bodies 