Denis Vellenuve is hard at work writing Part 2 of Dune and is very optimistic he'll get to make it. But that's only if the film doesn't bomb at the box office. He says Warner Bros and Legendary are 100% behind the film, so it'll really have to perform very poorly for it not to happen. Of course it's hard to say how Warner will determine success since its dropping on HBO Max on the same day.
Denis is still pissed about the HBO Max release and calls watching it on TV "ridiculous," comparing it to driving a speedboat in the bathtub. No word on how Denis will feel once the films theater run is over and the only way to watch is via streaming or blu-ray on your tv, but OP guesses he won't say anything about that.