I wishy I could remember where I seen it, but one of the WoTC editors for the website stated theyw ere reprinting a few cards from allinaces and ICe age. Reason why ..not sure. My guess..Coldsnap will be T2 legale while Iceage and Alliances will not. Another interesting note, Procon decks..which are ussualy T2 legall..Will not because they will contain reprinted cards from Ice age and Allinaces. So there is a chance that if cards Like Icy Maniplulator may not be reprinted in Coldsnap itself, they may be reprinted in the themed precon decks. Another question comes to mind. If Coldsnap becomes the Offical 3rd set of Iceage block, then weather light leaves, and doesnt have a block anymore.