Scoobes on 01 June 2013
I can't imagine any developer is going to be building a new engine any more. Most "new" engines are built upon the core of the previous engine with improvements and upgrades (either visually, mechanically or in terms of ease of development) added when they're needed.
It's not like CryEngine 3 to 4 is going to be a new engine. Same is true of Frostbite, Bethesda's (which they actually claimed was new for Skyrim when it was blatantly an upgrade) and Unreal.
