I am assuming that his back will be better by next November. If not,then he should hang'em up. Not sure if it is muscular or skeletel,but if it is not repaired in 5 months,it probably required surgery which is a whole different ballgame.
I think a healthy Eric May can be a reasonable facsimilie of Purdue's Chris Kramer of a few years ago. Off the bench,tough defender,who brings fire and physicality to the floor, with limited offensive contributions,but good senior leadership,on and off the floor. You do not need to be a starter to be a senior leader,but it helps to be in the rotation. I think Eric can do that. Just the physical maturity gives seniors an edge over many of the rest in the league. Austin Thornton hardly played until this year,as a senior,a starter for a top 5 team at MSU. Berggren at Wisky,as a 4th year junior,is really stepping forward.
Lets just hope that Eric can get to 100% by next year,so whatever his role is,he is pain-free and contributing to the team in practice,during games,and off the court,as a third straight solid senior captain,following Jarryd Cole and Matt Gatens.