Well, it isn't another Castlevania: Lords of Shadow but it is a promising new IP.
Developer Mercury Steam has revealed their latest project on Facebook :
It's called Raiders of the Broken Planet and it's described as an "epic multiplayer online asymmetric adventure." They didn't release any gameplay or anything, but we do have a teaser image (pasted in here) and it's appropriately savage. Looks like a rock-'em sock-'em brawler of sorts with multiple weapon options. To learn more, you can check out what is supposed to be the game's official website , though it's not functioning right now.
No idea about an eventual release window nor are there any confirmed platforms, but remember that Konami producer Dave Cox said some time ago that Mercury Steam's new title would release for PlayStation 4, Xbox One and PC, but not Wii U. And hey, I'm fine with it not being another Lords of Shadow sequel because the last one was a little disappointing .
Related Game(s): Raiders of the Broken Planet