Forge World Greater Daemons and Daemon Princes going to "last chance to buy"... though on the UK site they're sold out. That's officially the very last of the Fantasy units gone from Forge World.
This line, while it's on 40k stuff, is interesting:
"There will still be Forge World units for Warhammer 40,000, but the focus for them will be on the really big stuff – like Titans, and other kits that we can’t reasonably produce at that scale (yet!).
When we add new units in future, they will almost always be in plastic – and there are a lot of plastic kits on the way over the next few years!"
Hopefully that means they're saving FW production capacity for the specialist games, and The Old World. (Not that I wouldn't prefer plastic units, but I'll happily take plastic units and extra FW stuff too.)