I wonder whether Ross is going to try and get Moses back from Cain and Moira once Debbie leaves? I think it's inevitable that he'll end up going off the rails again once Debbie has gone.
As sad as it would be for Ross the character, it would be great for Michael Parr to have material that show this. After Donna died in the show, in the following episodes, Michael really shone amongst the rest of the cast.