Around the web, the original source must be a poster of a german forum, but I didn't check, honestly. These are the fyreslayers as seen in the next WD, they should be the releases for the next weeks: 2 infantry boxes, 3 hero blisters and that big salamader monster kit minimum, there could be a pair more. there're more pics of the dwarfs if anyone wants them, I posted only the thing I thought would be most relevant here.
This is what I want to do, from looking it looks like a straight base for the body. So if the saddle is the right shape. Just smack a Saurus from the Carno kit and bam. Instant Lizardmen model. I would use it as an Carnosaur model, so I'm crossing claws for good price but the price creep will say no.
http://www.belloflostsouls.net/2016/01/gw-breaking-new-fyreslayer-magmadroth-pics-rules.html Approx $110 so pretty pricey
I want one as the basis for a dragon ogre shaggoth, just need a suitable upper body. Bloodyhirster ans Giant are too small, and the ghorgon is ugly although probably the best bet right now :/