For the most part, Rey, Poe and Finn were all very well received after force awakens. That said, I'm not sure how after Rians movie turned him into a clown, he will be taken seriously as a Jedi. Because that was the implication by the end of 9.
Personally I think it's way too soon to start anything with sequel characters. While I'm not convinced any of the 3 movies will actually come to be. Except the Jon and Dave movie, but even it wouldn't surprise me if they made it a D+ event. I think the dawn of the Jedi is the best concept to start with. Then transition into the old republic. Then 12 or 15yrs from now, bring back Rey, Finn and Poe.