I know they have had a succession of owners but have they been in Administration in the last few years? That would certainly count against them as it did for Widnes. Donny would be an asset to Super League, good large population good ground, great transport links, no other SL club in South Yorkshire. The thorny question is the Fanbase or lack of it. You could argue for lot's of clubs having SL Potential, ie; York, only pro-club in North Yorkshire, Good fan base thriving amature teams, tons of local interest and the game is widely played in schools, but NO decent stadium!