I'm viewing this as Boatright's last year.
That's good for the program, because he's going to bring it every game, balls to the wall because 1). He views this as his audition for the NBA - and 2). He's a winner by nature.
When discussing whether SN and RB will enter the draft, you have to consider their own perspectives, and not just whether an NBA GM will want them.
Fact is, RB is hyper-confident. Many would say over-confident and cocky. This is part of what makes him a great player. But it's also going to impact his decision making. He said he considered entering the draft this year. That's clearly irrational talk, but there it is, nonetheless.
At the end of this season, I'd give RB an 80% of being gone, and whether he's a lottery pick is not relevant to that discussion.
My opinion is that there isn't a spot in the NBA anymore for a 5/10 player, unless that player is a once-in-a-lifetime talent. Kemba Walker is that guy. Ryan Boatright probably is not that guy.
But of course I'd wish him well and hope for his success.
SN, on the other hand, probably wants to stay at UConn for 4 years and make another deep run his senior year. Just that kind of person. Further, he's probably more realistic about his chances in the NBA - I'd say he doesn't have NBA athleticism and size, but I'm not an NBA GM.
So I see Ryan probably gone this year, almost definitely next, with about zero chance he's here his senior year.
Would love to see it, of course, but I also completely support every UConn player doing what he thinks is best for his own life.