You know it's funny that of the year's two big long running Disney franchise "bookend" blockbusters, inverse of how they were received The Star War leaves its universe in a better place than Endgame did. The great thing about JJ's plots is that you can just up and ignore them and nobody will care since he never did, look at how Beyond ignored the fact that JJ destroyed all of Starfleet twice in two films and nearly started two individual wars with the Klingons. Simon Pegg knew he could basically throw all this out from the word go and not have to deal with it because the films never did in the first place.
You can start a new Star War today and have Jedi and Sith all start popping up again because JJ did nothing to stop the balance being brought to The Force that ROTJ was seen as doing. He just kicked the timeline ahead 30 years and had it be Rey instead of Luke. You can start a new Star War trilogy that ENDS with the Jedi and Sith returning even, because Rey can be fucking off like Luke did, only nobody cares enough to track her down. The galactic power balance outside of The Force was also reset to where it was at the end of ROTJ, the First/Final Order is BTFO and now all the "rebel" groups can simply not immediately align into a Republic for Leia to leave to start a PMC. Sure, the movies sucked, but it doesn't really do anything to The Star War universe as a whole. So while Disney is currently semi-scared about flooding the market, all the ideas they were pursuing can still be done by just having people ignore this trilogy or the trilogy of trilogies. The one guys who left were going to do KOTOR themed/timed stuff, no problem. The rumors about Rian wanting to do a series set far away from the main galaxy stuff, no problem again. That Hutt series rumor, again can be done without any problems. Whatever Kevin Feige is doing is likely unaffected especially since he probably knew the ROTS plot from reading it on Reddit. Every "Star War story" film idea works still even if they're scared because they spent literally ten billion dollars on shooting Solo twice.
Disney actually lucked out here because JJ has essentially saved them from their original long term business mistake (as much as making only $5 billion since then can be a mistake) of trashing the EU and wanting to start nearly entirely fresh but now with tie-in works being at the same level as the films and narratively as important. Not from a perspective of how the EU is so valuable to the lore but simply because it's provided years of thousands of hands providing thousands of explanations, plots, scenarios, characters, etc. to mine by those higher tiered up in the canon. Even Lucas admitted to using it for reference in the prequels so he wouldn't have to rewrite or create things from scratch. Had he gone and made his sequel trilogy of Whillis and everything else you would have had all those hands turning it into shit that made sense that somebody else could come along and build off of for the mainstream. IIRC, Lucas again was referencing the EU for his sequels and was trying to avoid decanonizing certain stuff regarding Luke even though the Lucas-tier was always dominant. I think Disney during this "re-evaluation period" for Star Wars is going to realize what Marvel, Paramount, DC, Marvel, and Marvel all did about their same plans and start rolling that back and inserting stuff back into a canon timeline that actually will probably end up with the EU stuff being elevated to a higher tier than it was under Lucas because conglomerates only understand one franchise model at a time apparently. (The fact that they commissioned a new Thrawn trilogy, something that would only appeal to people who read the original, feels like an indication that the original is going to find itself back in the timeline between ROTJ and TFA now that the films are out of the way.)
The MCU is probably never, ever, going to explain or deal with how the world dealt with half the universe returning to life, five years later, and the trauma this should cause. It won't matter one bit from a financial standpoint because the X-Men are coming. The MCU however exists, outside the canon formally but tiered, within a franchise with thousands of hands creating those thousands of scenarios and plots to mine.
