I think the move to TV shows in the announced new slate is proof Disney is hedging its bets on the new film not doing as well. I’ve even met others who are not major fans in day to day regular life who have expressed my sentiment of never again being taken in after TLJ and sitting this one out completely. And it’s not an isolated incident but something that’s happened several times without my bringing it up.
Ultimately I think there will be some kind of box office fall off even if it isn’t form that as their handling of the franchise has not gotten to the Marvel levels they wished.