https://www.pcgamer.com/eve-online-developer-ccp-agrees-unreal-engine-4-deal-working-on-unannounced-mmo/

CCP Games, the studio behind space 'em up EVE Online (which you may have spied our Stephen writing about on occasion), has agreed a deal with Epic Games. The latter's Unreal Engine 4 has been named "the exclusive development tool for all of CCP Games’ currently unannounced projects." One of these is an action-inspired MMO. 

That's according to James Dobrowski, the executive producer on the as-yet unrevealed project that's in-development at CCP London.