I reckon there should be at least 2 or 3 clubs with BRL identities. It allows the clubs to have an established fan base and culture that resonates with the people. There's too many unknowns in creating a new brand like Bombers or Titans.
My teams would be East Coast Seagulls to cover the east, Brisbane Devils and Moreton Bay Dolphins. Seagulls could be a merger between Wynnum and Tweed Heads, who were part of a merger with Valleys in 88/89 and won both premierships.
I would really like a Brisbane Devils team to unite Wests, Souths, Easts and Norths so it can cover all of Brisbane. They would use the Devils name of Norths as it's the only one of the four clubs that isn't tied to a Sydney team. Base them at Coorparoo.
These 3 clubs would shake things up and turn the Donkeys into also rans.