Wind up Shantotto and wind-up brick man were not seasonal items though...

On the other hand, we did get the lightning items added due to popular demand so if enough people ask for it, it's possible. Personally, I'd rather not see limited event items be put on CS unless some legacy items get the same treatment just to be fair to all players, and rather not see items from preorder/early access, fanfest, and physical merchandise be added at all, and this is coming from someone who doesn't have those minions. Because if they were added, there's be very little incentive to purchase those things, and the players who did would feel cheated.