If they could make something with the grandeur of the 24Ms with its contiguous location and scenery, but bump it to Savage level for the proper raid, that would be A-OK.

More than 4 actual encounters would be icing on the cake, but I always felt the instancing of the raids lacked feeling that you're fighting in an actual place. The Coils and Alexander somewhat made up for it by having parts you travel through and see the sights, but Omega was nothing but arenas. Sure there was the solo sections, but there nothing to gawk at there.