Thank you, like a lot! We're glad you like our game and, to be honest, we actually completely support your choice of waiting for few more update before writing a review, because they are going to be glorious. Or at least we are doing all we can for that to be the case.
Regarding OW2 characters: Yes, all new girls are coming into the game, with Kiriko probably being introduced first, because it's just so easy to fit her into our game. Sojourn and Junker Queen coming too, but later, because first we need to expand world a little more, so we will have a place to fit them.
I'm so happy to hear! My favourite of the new bunch is Kiriko (actually- my new main as well! Love her to bits ahahaha) so I'm thrilled to hear she'll be added!
As for replaying, currently I'm mainly waiting for the Sombra-D.Va storyline to wrap up and for the Widow storyline to finish (even though I'm aware- it's probably going to be a whiiiiile), and for the alleged Tracer route remake I heard was planned!
Again, absolutely stellar job on this game, I can't wait to replay it and I already know I'll have so many good words to review it with when I do!