Is Number One even worth mentioning? I mean, really? She's barely been in it.
In my opinion, the Kelvin timeline should be left alone (although in truth, I love the look of the Kelvin Klingons). Discovery should have simply been a reboot of it's own. No link to any existing timeline.
I'll believe that when I see it. I can't honestly see them doing another TOS-style show with the TOS Enterprise at the forefront to be honest. There's a chance they'll do a spinoff, and one where we may see Pike again, but I very much doubt we'll see a show with Pike and the Enterprise at the forefront.
Judging by what's happening with S31 here too, it seems as though this is where they're going to bury the organisation; many of their agents have been ejected into space, and they've practically lost their fleet to the AI. I'm not quite seeing a S31 show get launched.