Yes!! I have waited years for this moment! I won't feel so bad missing the DOFUS Kwismas event this year now too.
And I do agree with Kikuihimonji. It is new content, and sure it's something that could convince people to subscribe to take part in; but it's Kwismas season! It is fair if some/most of it is limited to subscribers, but f2p should be able to share some of the Kwismas spirit too.
*cough* Or perhaps grant f2p the opportunity to somehow earn themselves a little subscription time to be able to participate, even for just a few days *cough*