I agree with Caser that the best bets at forward is the trio of '97-borns in Kaprizov (W), Vorobiev (C) and Guryanov (W). They could be on the same line.
After that I expect the following centers to be in contention for the roster: Rubtsov, Zhukenov, Trenin, Alexeev.
And the following wingers: Abramov, Polunin, Chebykin, Mityakin, Yurtaikin. Other contenders being Belyaev, Maltsev, Krikunenko. And wildcards like Popugaev, Kayumov and Sokolov.
The obvious picks on defense would be: Sergachev, Sidorov, Rykov, Voronkov. Strong contenders would be Kudako, Artem Volkov, Shchemerov, Bannikov, Zborovsky; maybe Chmykhov and Makeev. Minulin is a wildcard.
The goalie situation might be anticlimactic. Samsonov and Krasotkin are the most deserving.