Also, the release of the rest of the Sequel Trilogy might retroactively make TFA a better movie given added context.
Or make it even worse. If The Last Jedi is good, TFA will still be a very weak (and bad) entry. I’ll probably just skip it and watch The Last Jedi immediately afterwards Return of the Jedi.
I don’t see how you could expect The Last Jedi to be good. You you hate Rogue One. You at the very least strongly dislike The Force Awakens. I imagine you also don’t like the second half of Return of the Jedi.
So if the last Star Wars movie released that you thought was “good” from start to finish was probably The Empire Strikes Back,–given 6 successive irredeemably horrible failures to impress after that, I don’t see why you should even bother watching The Last Jedi at all. Better to just give up every further entry in the franchise as a bad job and save other people from hearing your bellyaching about it.