It is possible that the further they get from the Skywalker stories, the more and more people lose interest in the series. Especially the casual fans who are only going to see Darth Vader or Yoda.
I'm also going to put my good name on the line and predict that the Hans Solo movies all but bombs. I don't think it will bomb, but I bet it doesn't do NEAR as well as the new movies have done so far.
I'll take you a step further and say it flat out bombs.
Both Rogue One and The Force Awaken's budget were nearly $300 million so it's safe to assume Solo's budget will be the same. Now factor in they had to reshoot 90% of the movie. While that doesn't mean they had to create many (if any at all) new sets or models, that's still a lot of labor, time, and resources that are being exhausted. I think it's safe to say such extensive reshoots cost a minimum $50 million to $75 million. For argument sake, let's just say that totals to $350 million.
Usually an ad campaign for a movie costs double the initial production budget (not always, but it's a safe bet), so let's go ahead and say they put aside $250 million to advertise this movie. Well, now we have this controversy with the posters for Solo being direct rip offs of a French artist's work from a few years ago which will likely end up in new posters entirely causing just more problems. We'll just throw on $5 million to redo the posters, distribute the new ones, and remove the old ones as well as throw away the ones already produced. Already, the budget (I'm guessing) this movie is at is $605 million when all is said and done.
Let's talk about box office now, though. With all the negative press surrounding the movie's changing of directors, bad trailers, plagiarizing posters, etc., it's certainly going to hurt the box office. Also, coming off a divisive film with The Last Jedi could hurt it as well. Lastly, the movie's going to tank in China. At best, with all of this information, I see this movie making $750 million worldwide. Now, that doesn't seem like a bomb if it cost $605 to make, right? That is still some profit, right? Wrong. Remember, movie theaters get approximately 20% of the ticket sales. If it does make $750 world wide, that's $150 million being taken by the theaters leaving Lucasfilm/Disney with $600 million.
Of course none of these numbers are definitive or have any complete basis, this is all conjecture, and honestly it's entirely possible the film cost more than what I pegged it at here and it could also make more (though I see no way it could make over $1B WW).