I would be willing to bet it would be a solid AA with the possibility to be a small AAA.
I think this new school could dominate sports in West Virginia.
Football - you have to start with Matewan and then Gilbert a close second. You combine those schools and use the athletes Williamson has and fill any remaining holes with kids from Burch how freaking awesome would that team be????\
Basketball - you have to start with Burch and Williamson here. Both have dominated at their levels for years. Those two by themselves would be enough but Matewan has a few athletes play basketball (David Starr).
Baseball - I think this is where you will have kids from all the schools representated pretty evenly. Matewan won the championship a few years ago but Burch always has pretty good pitching. Williamson has always been pretty tough at all aspects of the game. Gilbert has always been pretty solid as well. I don't think a single school would dominate this team.
Other sports I have no idea but I think they woudl be competitive.
Also, I have been mentioning all of these as individual schools but it means nothing if they can't come together and form ONE school.
When life hands you gators - make Gatorade