I think we'll see a push into cloud gaming, but that push will come from Sony and Microsoft. Can't afford a console at a four figure sum? No problem. Just sign up to stream your games via the cloud. Of course, you would still need to purchase your games, but if you can't afford the hardware then you'll have to pay a monthly fee to stream them. And since the hardware will be expensive, a lot of people will be priced out.
If you've already built up a vast digital library but can't afford the next PS or Xbox, the cloud might be the only way you'll be able to access your games.
If the choice next generation is that or a console that costs over a grand, then I'd personally rather not bother at all.