Looks Like Daybreak Games Is Working on an Unannounced Next-Gen MMOFPS
At Daybreak's career page, the company has several empty positions for this game. One of the jobs, Senior Game Designer, requires the person to "implement core systems in a large-scale, FPS game, using database tools and custom editors", and it says "familiarity with core systems of FPS game systems is a must!" The other job UI Game Programmer has a clearer hint, as the accountabilities include "developing, writing, and debugging code for complex systems as part of a next-generation MMOFPS."
Coincidentally, it's reported by MMORPG.com that Daybreak Games registered the Mythwarden.com domain last week. Is the domain related to the unannounced title? My guess is yes.