There was talk about this sometime after the Big 12 Championship game during an interview. The reporter asked Crick what he thought about Suh coming back for his senior year instead of going pro. I think Crick told the report that it was the right decision because he got better his senior year and he's gonna get rewarded for his hard work by going pro and being a top 5 draft pick.
Depends. If he's a top five pick he'd be an absolute fool not to cash in the lotto ticket. All of that will depend on his performance on a post-Suh line. He's an amazing player. My guess is he will end up benefiting by staying his senior season and his draft status will reflect it.