I don't know. I'm not an NBA Draft expert today. But from the NBA games I watch, I can't imagine Queen having an impact next year in the league. Not writing him off as not being a legit prospect though.
Not having an impact is different than being in the league of course.
I kind of agree with you on what he is, and the questions at the next level... and he might be G League all of next year... (with the additional experience probably helpful).
But it's also not impossible to see how he could be utilized for a few minutes at a time.
The mock referenced to OKC would be ideal for him.
Probably G League, more experience, actually developed.
I thought Len had a chance to be more useful in the NBA than he has been, but he's been in the league since '13-'14, and has made nearly $50M... Queen might never be a star particularly in today's NBA, but he's different enough from most of what is out there that he should make a good living, and be able to stick in the NBA in some capacity.
I know some will point to Diamond Stone, but Queen has a higher skill set.. (Stone still playing professionally, good for him... not everyone is an NBA guy, but I'm sure he's made some decent $.)
Others will point to a Jordan Williams... but as strong as Williams was his Soph year (honestly one of the underrated Terps seasons), he wasn't overly skilled, and of course we later found out a big knuckle head.
if Queen keeps working in the gym, and commits to being regularly motivated (not just sometimes motivated), I think he can help teams, and has a chance to be someone at some point. Next year at best, he's a role player for someone.