New Dragon Age: Inquisition trailer.
Producer Cameron Lee has commented that each of the areas in Dragon Age: Inqusition has its own realistic ecosystem, complete with predators, prey, factions and more. The population in the game world is based on an "emergent system" that will adjust based on your actions. You will often see towns attacked by bandits, monsters fleeing from other monsters, and many other scenarios.
"The artists, designers, programmers, animators, audio and VFX specialists and many others are the most talented I’ve ever had the pleasure of working with. They are the people bringing the world of Dragon Age to life for you to discover. They’ve built incredible graphics systems like weather that creates naturally-formed puddles, spider webs that blow in the wind, and huge amounts of various materials that look more realistic than anything we’ve ever created in a BioWare game!"
Dragon Age: Inquisition is scheduled to launch Q3 2014 for the PlayStation 3, Xbox 360, PlayStation 4, and PC.