Which is why I think GTA IV is next-gen’s siren song, and a sign of drastic changes to come. Expect to see games made for lower budgets, targeted at wider audiences (ones that aren’t fixated on high-end 3D graphics) and delivered over broadband with a micropayment program in place. Don’t expect a follow-up to the 360 or PS3 anytime soon, either. In other words, the days when so-called “next-gen” gaming reigned supreme are coming to end — instead, the industry’s future will be shaped by games like Rock Band.

Why GTA IV Was the Beginning of the End - GigaOM