If "if's" and "buts"
were candy and nuts
we'd all have a merry Christmas

There may be a couple “if’s” but they are both very realistic. Shesterkin has been ranked as a top 3 goalie prospect league-wide for a while now. He is almost definitely going to the real deal.
Pavel Buchnievich started breaking out towards the end of last season, and with even more talent alongside him it is likely that he hits the 60 point mark (barring injury of course).
So those are the only two “if’s” and they are not even big ones. This is a realistic scenario, that could happen if the Rangers chose to go that path.