Still not sure. From what I've delved into regarding yesterdays stream all old exotics that you have ever obtained since Day 1 will be available to re-purchase for glimmer and am exotic shard. For the 2.0 versions of these guns, for example the black SUROS REGIME, takes glimmer, i believe a shard, legendary marks and possibly something else. Not sure if every year 1 exotic will be getting a Year 2 remodel since they only showed a finite amount of content before everyone started chanting "Valt Space". Hope this helps.