Exactly. It would be way too confusing for general audiences and come across as incredibly desperate.
At this point, it sounds like these characters are just going to pop up in each other's movies from time to time and that'll be the extent of the crossovers/team-ups. For instance, Superman is rumored to have a cameo in Shazam, and then I'm sure there will be some kind of cameo from someone notable in Aquaman, same for Flashpoint, etc., and they'll just keep churning out the solo movies with surprise guests. Then, maybe if these next few solo movies are successful enough, there's another Justice League movie early next decade or something sans Batman.
At this point, it sounds like these characters are just going to pop up in each other's movies from time to time and that'll be the extent of the crossovers/team-ups. For instance, Superman is rumored to have a cameo in Shazam, and then I'm sure there will be some kind of cameo from someone notable in Aquaman, same for Flashpoint, etc., and they'll just keep churning out the solo movies with surprise guests. Then, maybe if these next few solo movies are successful enough, there's another Justice League movie early next decade or something sans Batman.