Next-gen is almost a total victory for open world.
Nearly all great franchises are switching to an open world approach:
MGS5
The Witcher 3
Dragon Age Inquisition
Mirror's Edge 2
Dead Rising 3
Castlevania LoS 2
Killzone Shadow Fall
And many new IPs are open world:
Watch Dogs
Destiny
The Division
Dying Light
The Crew







