I predict that it will do well, but not do the usual Star Wars numbers. I would be really surprised if it did. Besides just being lackluster, I would just think that by the time it comes out people will still be going back to see Infinity War for the 3rd or 4th time (unless that is a surprising, devastating flop too).

Personally I hope this does just well enough to keep the blood pumping in the franchise, but not well enough to warrant more origin stories.