If they're gonna go back in time, I'd take a "Pike Series," and even a "Young Kirk" series, but based on what we know about him from TOS: Finnegan, being a "Stack of books with legs," his friendship with Gary Mitchell and the relationships with woman from that time. Then let him get onto the Farragut with Captain Garrovick and whatnot. He doesn't need to know McCoy or anyone from his time as the Enterprise captain. Hell, I'd be happy with his life just before he joins the service. It would be interesting to see them explore what made OUR Kirk tick.