Of course there will be improvements but someday there is a limit which nobody can go beyond because another hardware is needed. For example GTA V was a great game but sometimes you could see it's all what last gen could do. And I don't think with the PC based hardware of the PS4 and Xbox One it will need so much time to reach the hardware limits because a lot of developers know how to deal with PC hardware and how to improve the games on it.

imo, there will be no 9th gen.

sony and MS will migrate to be services like netflix that are playable on a variety of devices. they may release hardware capable of playing those services but you won't really call it a console.

First off, Sony hasn't won this gen. It is still way too early.

Game streaming is the future. With current infrastructure? No. I I think there will be at least 1 more gen of physical consoles, but services like PSNow will be the future. I think that Microsoft will be able to easily adapt but Nintendo won't.

For one, Nintendo shouldn't release their 9th gen console first. Many will then call their next console underpowered and gen 8.5 just as many call the Wii U gen 7.5 for some odd reason.

Not gonna happen, they all will survive.

It depends on a lot of factors:

- Success of Steam box. If the Steam box becomes a success, or another competitor, MS and Sony will act sooner to counter act.
- 4K tv adoption, BI intelligence predicts this to be 50% in 2024. 20% in 2020, enough to play a factor.
- Success of VR. PS4 and XB1 are too weak to comfortably do 3D 1080p60 at the level of graphics we're already getting used too. Plus a 4K based VR set is only a matter of time. Streaming VR content is a no go, any lag in VR will kill it.

Nintendo will most likely act first. A new console in 2018. Will they dare to bring out Mario VR, or stick to focussing on co-op experiences.
MS will probably bring out a cheap small disc less XBox One in 2018 and focus on streaming. With their success mainly in UK and USA, a cheap all digital Cloud box is pretty likely. They might up the specs a little bit, DDR4 and HDMI 2.0, but will be fully backwards compatible with downloadable XB1 software.
Sony will stick to physical next to digital, launch in 2020, show off its 4K capabilities and their next 4K VR headset.

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So you actually think the PS4 and/or Xbone won't get replaced for 11-13 years? lol. That's madness. These consoles are weaker compared to their predecessors than any other time in history. In five years, they'll be so gimped, developers will be fed up with them.

2019 at the latest.

Yes, that's right but everything here are just possibilities not reality^^

PS4 kills the 8th gen and the Ouya 2 will be the 9th gen's unstoppable monster!