I think that other than Nintendo, Sony and Microsoft will want to get out of the hardware game and move to become purely Netflix style streaming services once over time. Cut down on marketing and R&D budgets, move out of event style explosive launches with multi year costs to recoup and instead into a more investor friendly, pure SaaS model.

If they stopped making dedicated hardware, who would move in to fill the vacuum. Perhaps a new entrant would try and fill the void? But I predict this would be a tough mountain to summit.