A lot of people thought there'd be a trailer out for this already so baseless speculation time kids! Custom crafted for those who really didn't like TLJ, plugged the coordinates to the Disney Hate homeworld into the navicomputer, and made the jump.
Well, almost fully baseless. There's a small shred of some rumor in there but not much. Here we go ...
Disney execs of course had seen TLJ and had some inkling that at least a part of the fan base might not like it, what with the passing of yet another of the old icons. For that reason they didn't want to attach the debut trailer for Solo to the movie. Better to let some of those with an initial negative reaction have a little time to come around and not have that reaction joined to the hip of your attempt to sell them on your next offering. Nothing really lost in waiting a couple of weeks to let things shake out and see the lay of the land before tossing it out there.
Well that reaction ended up being a little more robust than they anticipated. At least louder. So now that couple of weeks will end up being a month as they decide to toss some of that TLJ money over to NBC and air the trailer during the Super Bowl.
Let's drag some of the schedule shuffling going on over at Fox into the mix. The word is starting to make the rounds in Hollywood that Solo has got problems. Problems of the "it ain't very good" variety. The slate stackers at Fox decided they'd rather have a weak Solo movie attempting to eat into Deadpool 2's second week numbers rather than watch Incredibles 2 fueled by all of the pent up demand for the sequel gobbling them up. So they slide it in front of Solo assuming that Infinity War is probably going to be heavily front loaded by all of the same sort of fans they want showing up their opening week, so they will have already seen it by then.