Here's a couple ideas I've been kicking around to make GEO a bit more relevant.
Allow the Luopon to move. Either by directed commands or by being able to cast it on someone and have it track them.
Allow the effects to go Alliance-wide. The bubbles are large but often useless animation in alliance situations, and since they can only ever put up two, why not allow it to be one that is alliance wide?
Yes, I know, rabble rabble why can't others do alliance wide. Well, because your magic isn't a massive bubble.