I think it is too early to say who will be in the team in spring/summer. Some players are fix as long they are healthy but especially the OH postitions will depend on who is playing in the next months in their clubs and how they are doing.
Fix members of the NT:
Romanova is probably still the favorite for the second setter position but I hope some other players will get the chance. I think Vetrova is having a pretty good comeback. Filishinskaya is not doing as good but she is in a very weak club. I liked Efimova last season but she is not in the superleague anymore.
I think Voronkova is the only OH apart from Parubets who has a safe place in the NT. She is still better than the other options... I like Sazonova but her reception is not consistent. But she is only 22 and it is her first season. She receives most balls and gets also most balls in attack (similar to Parubets). Some players to consider If you just go by the stats: Chaplina, Shevchuk, Zvereva (only if she plays more), Shcherban, O. Frolova (needs to play more, was really good last season), Simonenko, Fedorovtseva, Pipurynova, Krotkova (needs to play more). I like Kotikova but she needs to play more. Kadochkina needs to improve her reception. No idea how Lazareva and Kosheleva are doing but they are obviously options.