Disney might take marketing to an obnoxious level, but I don't think they'll mismanage the Star Wars franchise and start turning everything they touch into lightsabers, Jedi Knights and Darth Vader. They're masters of just releasing enough content to keep you wanting more if their past home video releases of classic animated movies are any indication of how they'll handle Star Wars as the years pass.
Given that the first stand alone movie will be Rogue One about the team that stole the Death Star Plans (no Jedi in the team as far as i know though Vader will appear) i'd say they have a good grasp on the whole universe and will branch out the stories.
The main movies will still feature jedi heavily but they Anthology movies so far will shine a light on other characters and happenings and i hope that in a few years down the line they will have the courage to branch away from the "old trilogy" characters and start inventing cool new ones with entirely new storylines.
They have bought an insanely detailed and wide open universe to play in, it would be a shame if they only concentrated on a half dozen characters.