This is kind of where I'm at.
I love Tynion for bringing Tim "back", and I think he'll get out of this with a solid status quo, but I don't think Tynion is the guy who can really carry that forward.
Let him play with the bat fam in 'Tec, but bring in someone else to write Tim (and Kon and Bart?) going forward.
Maybe a bit of an out there pick, but as far as potential writers for Young Justice go, based off the style and quality of her fill-in issue on Justice League, I think Shea Fontana might be a good fit. (Peter David coming back would be the best obviously, but he's yet another great writer DC has scorned.)