Thanks for the replies.
Well, in my case, I can't use pure lightmaps, since my scenes could be pretty dynamic and the gameplay will be mostly physics based. I can't even bake the lights on static geometry only, because when dynamic objects from other area is placed somewhere else, they won't contribute to lighting in that new area, etc. I'm thinking to combine lightmaps with lights. For example, to have a room with baked lightmaps and in my editor to place a deferred light by the window with the same color to illuminate my dynamic objects eventually placed by the window, that can't be affected by the lightmap. If that light cast shadows too, it could probably solve some other issues, but it seems too much of duplicating the lighting with different techniques..