I would vote for:
1.) New material with canon resources, i.e. sullust maps, a campaign on an asteroid mining colony, etc. with more alien species as characters. We have a lot of tiles and things that see little use, so I would even go for a campaign book or two.
2.) I like the prequels and the clone wars series. I would be fine with a reboot in that era, and there is SOOOO much they could do in that time frame. Each expansion could be a single Jedi leader with clone/indigenous allies, droids/indigenous villains and so many worlds to choose from. The campaigns could be great, and Grievous could actually do something threatening at some point.