I imagine that the conversation must be much more complex in MWSD given the tradition of patter. As I understand it, oftentimes the decision of which term to label each role is determined by what might best rhyme with the following call, or by how many syllables you have time to say.
While it's probably a much more ambitious endeavor -- and one which I'm sure as a contra dance caller I have very little grasp of -- I would say that many MWSD communities are ready to handle a role-term change, but that it would take exceedingly creative and experienced callers within that tradition to help determine what those might look like.
Good luck!
Angela