I didn't realize Dune 3 had already been shot and was in post production. I thought Villeneuve had another project in line before Dune 3, but I guess not.

If Avengers is going to move dates they better do it quick. The marketing has a countdown and it will be weird if you have to adjust that timer.

I don't see a "Dunesday" trend happening, both films are probably 2.5+ hours and people just aren't going to see them back to back in December.

My guess is Dune moves up a few weeks.