Glen was awesome in Everybody Wants Some, I hope it's him or Teller. Hault would probably add the most to boxoffice of the three which isn't much to begin with but Teller and Powell are better actors.
As of now they're saying 65m OW, but saying it could open in the 60-75m range. Still early but hopefully it opens closer to 75m than 60, if any franchise deserves a big opening it's Mission Impossible.
Didn't imagine people would be interested in this but I check twitter and this picture has more likes and retweets than anything Mission Impossible that he's posted including the first trailer.
As long as the next trailer doesn't disappoint and the reviews are pretty good I think this should do over 800m. There's much more hype for this than the previous entries.