MercurySteam, who handled development of Castlevania: Lords of Shadow, is teasing an upcoming announcement. From the countdown timer on its site, it looks like the dev will announce a new game on April 15th.
Dave Cox, who served as producer on Lords of Shadow, may have left his post at Konami, but he's linking back up with MercurySteam on this mystery title. On his LinkedIn profile, he says that this is the studio's next AAA hit.
Studio Head and Owner at MercurySteam, Enric Alvarez, has stated that this game is the studio's "most ambitious undertaking."
MercurySteam has also released some art samples for what is rumoured to be a sci-fi title. Stay tuned for more news on April 15th.