mmo powerup for pun (self-hosted)

Hello!

Is it technically possible to develop a powerup for self-hosted PUN that would work like Photon MMO PowerUp (“grid” like solution), so one could switch from cloud (which everyone loves) to own mmo-server when needed to play on a big location with hundreds of players?

thanks,
Slav

Cross-post. Answered/discussed here:
http://forum.exitgames.com/viewtopic.php?f=17&t=2734