The problem is we, as fans, could draw up a list of 1000 things we want to see, and we're only going to get a tiny fraction of those things. Over the next ten years, if we're lucky, we might get two or three FF films and a couple of crossovers, so we're not likely to get all the things we want (Thing Vs. Hulk, Johnny and Spidey, Reed and Tony Stark, FF and Black Panther, FF and Inhumans etc. etc. etc.).
That's the reason I've always told my friends I don't have a "bucket list". There are a lot of things I'd like to see and do, but I'd rather appreciate the things I get to do rather than feel disappointed for the things I didn't get to do, and that's the attitude I have with special moments with the FF that I'm looking forward to.