T'Pol wasn't that popular of a character, ever, and honestly even as an Enterprise fan, I think the show has gotten plenty of callbacks in this show and the last few movies. If the catsuit no longer fits, you must quit.
Oh who am I kidding. I'd love to see her in some capacity, but not as a captain.
I wouldn't mind seeing Una as captain, her characterization in Desperate Hours was good (and for those who say the books aren't canon, that's true, but something different is going on with these books. Burnham's explanation of why her parents dying, the whole supernova thing is directly from that book), and she would work very well with Saru. Also, she's not human.
I really did think though, we were about to see Prime Lorca get picked up at Vulcan.