Aliona for Rukavicin, now that's an interesting thought! His ladies are always nice to watch. In some ways Aliona reminds me of Gubanova but with better jumps. Realistically speaking it's not very likely though, as Moscow skaters rarely move to St Pete. So either TT or CSKA would be best, as you say.
Voronov, Rukhin, Erokhov and Samoilov all spent time with Tutberidze. Rukhin (and Voronov before him) moved to CSKA and is doing well. Erokhov and Samoilov wound up eventually at Moskvich, and while not excellent at least they are landing quads and not retiring.
Let's see if Trusova can prove whether a post-Tutberidze skating career is possible without a Y chromosome