I’m mixed on this. On the one hand, the sequel cast deserved way better than what they got, and this is a chance for Disney to rectify their past issues and give them a better story to work with. On the other, the premise undoes the big thing that the sequels changed: rebuilding the Jedi failed, with Luke (correctly) pointing out the corruption of the late Republic Jedi and Rey burying the last known Jedi lightsabers after constructing a new kind. Undoing the OT’s impact is part of what made some potentially-fascinating sequels misfire in premise before the execution started, so I’m a bit concerned if they similarly undo the ST’s impact.
The good news is, this movie could still be well done for what it is. And if so, people who don’t prefer the ST movies (myself included) won’t have to watch them, because we can just say it’s 50 BBY and almost everyone died (which makes sense if it’s been 50 years since ANH) and that Rey’s introduced as Luke’s successor a la Star Trek: The Next Generation. How much this will work depends on how much of the ST this builds on, but I’d say we have a chance.
Since I’ve covered the good and the bad, time for the ugly: this starts a new X-XII trilogy and everyone hates it, says it ruined the Skywalker Saga, and starts asking if the ST was underappreciated in its time. (Mostly joking, but I hope that’s not gonna happen)
Rey probably won’t get married or have a family. Disney shows very little interest in adding any romance to Star Wars.
In fairness, if someone’s in Star Wars it’s better not to have a romantic relationship at all–they’ll most likely kill their spouse, turn out to be siblings, have their kid turn into a sith that makes their BFF’s life miserable (canon or legends), or have one or both of the couple die immediately after a first kiss.