A little of both. I've been at this school since May or so, coming from a traditional Taekwondo school so it's new to me. I get the impression they've done this before but I'm even newer to this class and from talking to others in the clasa and the instructor, this is not a new thing but we have some new students like myself so we've been working up to this for awhile (actually we did this a few weeks ago as well and will be doing it fairly regularly...) So it's new for some of us at the school, but not for the school as a whole.
This is in an advanced clasa at the school which is basically a more intense class and part of it includes tis form of sparring. The normal class include classic Hapkido inludin Hoshinsul, kicks, hand strikes, etc....