I actually think they should keep Chandler away from Alvarez until Alvarez' contract is up (I think it's 1 defense, 2 at most). Because if they fight once more and Chandler loses, then what? Eddie leaves, and they have the embarrassment of knowing the guy who will probably win the belt now (Chandler) lost twice to the guy going to the UFC.
Too much risk. Just wait til Eddie's gone, Chandler will get the belt back, they'll be 1-1. No shame in that. Use the time to let Chandler destroy a couple of other guys who can't hang with him, give him some more highlight footage for his promos.