Here are a few suggestions I and some others have had that could help to improve Odyssey.
The ability for the storyteller to open another Storyteller slot, so they can get a helping hand, there's often a LOT for STs to do and some assistance could be helpful to them.
The ability for STs to be able to turn Actors into simplemobs and borgs, as that isn't currently possible without adminbus, and would be useful for any scenarios where the ST wants a animal or robot controlled.
The ability for Actors to turn into special subspecies (provided they have the whitelist), such as tesla rejuv suit tajara or warform vaurca.
The way for the Storyteller or Actors to spawn a overmap-capable shuttle. These are sometimes needed and being able to have one on hand would be a useful feature.