Interview done in August when GTAV was nearly done and being tested. Interesting bits:
GTAV was in "full development" for 3 years, though discussions began almost 5 years ago.
Vice City was done in 9 months. "We were on such a high from III we just ran through it."
GTA IV was "dark times" because of the Hot Coffee scandal after San Andreas and the mood of the studio affected the darkness of IV.
Rockstar North has a lot of schedule and budget freedom from Take-Two. They spend a lot of time polishing after a game is 90% done, and they can't finish a game per year anymore. They can make what they want.
The studio will be reorganized so a core team can maintain GTA Online while others do other things.
GTA VI: "We’ve got about 45 years worth of ideas we want to do,” Benzies laughs. “We don’t know what GTA VI will be, but we’ve got some ideas. GTA Online is the focus right now. There ain’t no rest between finishing V and then Online. Plus we have some other things – stuff, DLC, I don’t know how to describe it exactly – that we’d like to do, and we’ll pick the right ones.”