Well there is no guarantee that seniors like Conditt, Johnson, or Kalscheur will automatically take their extra year, is there?
CW said Kalscheur wants to play two more years for certain.
Hinson, Johnson, Conditt, and Kunc (who has already graduated, I will remind gently) might want to say they've had enough and "go out as seniors" even if they could technically play for another year.
Hinson is probably the least likely to do that -- he's only played two years of college basketball so far and is a likely starter. Kunc has already graduated, but he's likely to play and seems to like TJ so who knows.
I won't guess with the other two, but it would be their fourth year playing this year. Maybe it's time to move on.