There are very few ways they could actually give us anything "better". An exclusive shader is not "better". An emblem isn't better. The only thing that could be better than the exotic class items is another exotic class item that boosts xp more, or a gun or armour. And I'd bet they aren't making exclusive day-one weapons or armour. Remember that exclusive emblem for playing the beta? Yeah, an ugly grey PoS. And it wasn't even legendary tier. There's not many option to make anything better, so I doubt it will be.