That sounds pretty doubtful. It would require someone to manage it, and that means that said manager would have to sacrifice time and energy that could potentially be utilized for other Realms. Even then, it would further divide up attention and focus of the other RPers for the current realms. Perhaps if the Awakening sees a jump in RPer quantity and activity, then it could be something to be looked into. Although that may be unlikely, it is still a possibility nevertheless. For now, availability of Heroes in the standard realms should prove to be sufficient.
Even if it was, it wouldn't make much room because of its own lack of attention and activity that leaves little to be gained.