McNeil is the obvious one.
IU is still going after Demarquis Gates, who is committed to Ole Miss. Not sure if Booth has any connections with him though, so that may be wishful thinking.
It's not a given that all of them are committed elsewhere or that we're only talking about 4 stars. It will be interesting to see how things shake out...that's for sure.
Back to back good classes can only mean good things.