I don't know if all the Biggs scenes will be included (it seems likely they will), but personally, I think they made the right choice cutting those. I am, however, interested in a cut of ROTJ that includes the lightsaber construction scene (John Williams also composed music for that scene, which could be easily added), and the extended Endor/bunker scene would be great to see integrated into the film, and maybe also the sandstorm scene (though, the scene of Luke in the cockpit that replaced that scene was probably also a wise decision).