So - Destiny.|
Bungie left Microsoft, and left the Halo franchise in Microsoft's hands. They decided to take their existing strengths (developed in the Marathon and Halo days) and make an online-based semi-MMO shooter called Destiny. Basically one part Marathon, one part Halo, with a little Borderlands thrown in.
Only problem: the "always on" requirements are proving tough to sell. There were actually less problems in the free open beta than there are currently trying to play online; disconnects from server are frequent and cause players to lose progress in missions, drop from teams, and generally have a bad time even while their internet connections and Xbox Live / PSN connections, team groups, and voice chat are all rock solid.
In some ways, this illustrates the problem of the "always on" model and why the Borderlands model is probably superior. Your "always on" is subject to the troubles both of server-side processing and connection issues, while a Borderlands model requires much less power to operate and isn't nearly as consumed by the single point of failure issues. As a bonus, I can play Borderlands even when the cable lines are temporarily down; the same can't be said for Destiny.