I'm not a big fan of the full sized statues in game (something about them looks wierd to me), but since they are there I'll add some other people I would like to see if I was going to make a museum of it.
We already have Jango, Boba, Mace and Maul in game. I suppose I can count the Stormtrooper and IG-88, but they are collection rewards not just vet or TCG drops.
I think adding Count Dooku, Kit Fisto, Aayla Secura, Ki-Adi Mundi, Master Yoda, Qui-Gon Jinn would fit now without making statues of people in game too much. I know it's all Prequel characters (cept Yoda), but I don't have a problem with that for my list.
Another thing I'm hoping for is the completion of the 20 busts. Right now I believe there are only 2. In case you don't know, the 20 are the only people who ever left the Jedi Order that would be welcomed back, and yes Count Dooku is among that rank. (See Anakin, you could have been married and not had a problem at all. Think Man!)
I'm a big fan of adding content that gets people out and into the wilder less traveled areas of the game, so I think Chronicles will be a good boost to the game in that view. I know mine will be a long road.