Gadheras
Squire
Right now we have no idea if it is paid or not. DLCs don't have to get a price tag. It could also be just a free Content bit or they used the elephant as a way to test their DLC creation process and see if the access options for later real content packs work. I personaly don't think that this is going to be a real paid DLC simply because of the size. If they want to sell it not in the context of a expansion at all I would expect some larger "item packs" with many other new horse models and armours or whatever. But even this seems rather unlikely for me.
Oh come on. Don't try to make sense of things. It's more more flair in blow up the unknown in a dramatic way just for an excuse to throw **** TW's way.