What do you get for mining the new Christmas tree?
It gives you 75,000 gold. So you get back 50,000 in return for cutting it that costs 25,000. No difference to other X-mas trees. Just a new design. I recommend to preserve these trees, as these trees might give you presents daily.
Added information:
As of 12/29/15, there is still no present/gift spawning beside the trees.