Considering that the pictures we have online barely show a thing clear enough to judge, I think that I am going to reserve judgement of this theme until we get high-quality, non-preliminary pictures. However, one set did catch my eye even from that tiny picture we have, 70403 Dragon Mountain, That is one I will definitely try to get, even if it is mainly for the dragon, as I missed the previous lot of LEGO dragons from the Fantasy Era sets because they were in my dark ages. Hopefully the rest of the line is good enough to warrant my attention.
Reason for edit: only one dragon in 70403 Dragon Mountain rather than two like I had originally posted