Wii U or PS4?

WIi U and Vita I doubt they're actually going to die in 2015, but they'll be irrelevant.  They're both already irrelevant for the most part.

PS4 being in production until 2029 is possible.  They just stopped producing the PS2 and last gen lasted for eight years.  Assuming that this gen will also last for eight years brings is up to 2022, and PS4 will be in production while PS5 is current gen like the PS1, PS2, and now PS3 before it.  If it's been in production as long as the PS2 was, then that brings it up to atleast 2029.

Both of them. I don't get how Wii U will be irrelevant in 2015. It's a Nintendo console, they last 5-6 years, whether they sell a lot or not. Vita, on the other hand, has very small chances of being saved. (Wii U doesn't have system sellers like MK8. Smash Bros., and possibly Bayonetta 2 if "hardcore" gamers have the balls the buy a Wii U) Seriously, 7 million in 2 years?! 

As for PS4, that's exactly my point. I doubt PS4 will sell like PS4. Either it ends up with 20-30 million because Sony goes bankrupt, or it sells around 100 million.

way too short. Man have some confidence in wiiu.

It hasn't even released its core titles yet. PS3 had two bad years and then went on to sell 80 mil.

Sure wiiu is selling much less, but I can see 40m+ and 3-4 years to do it. Sooooo 2017 or so?

My predictions:

Wiiu 2017-18
PS4 2020
One 2020
3ds 2017
Vita march 2016 unless something changes soon

   PS4-2020
   XBone-2019
   WiiU-2018
    Vita-2015
   3DS-2019

2017 WiiU
2019 Xbone
2020 PS4

WiiU will have the tipical Nintendo lifespan. As i dont see Xbone really taking off i would say it will die earlier than 360 by a long shot. PS4 will follow the PSX pattern of sales which means frontloaded and 7 years of life

Wii - 2014 (it's still selling that nice Wii mini bundle)

-----

WiiU - 2019
XBO - 2019
PS4 - 2020 (but it will still sell decently until 2025)

Vita - 2017
3DS - 2017 (because Vita will be replaced so Nintendo will have to make something)

Wii U: 2017-2018
PS4: 2019
XB1 : 2019

By "die" what exactly do we mean? That the system is being discontinued, has stopped being supported, or no longer has new games?

I think the PS4 and One will each have their successors come out in 2020, and will be supported with major releases including both multiplatform and exclusive titles until 2022. As for when they're discontinued... no sooner than 2023, and as late as 2028, depending on how well they do.

As for the Wii U, I expect Nintendo to be unable to make a successor ready until late 2018 or so. Then, the console will likely be discontinued and stop receiving games by early 2020, assuming the system continues to do poorly.

The 3DS will likely be succeeded in late 2017, give or take up to a year depending on how well the system does in the future. Considering how the DS STILL gets new games, I expect the 3DS to get new titles, if only for the eShop, at least as late as 2020.

The Vita is a mystery to me, simply because it's the only system that has a good reason to be discontinued. Assuming Sony wants to make a third handheld, the Vita can be replaced as soon as 2016, with support in most of the world vanishing within a year. However, Japan might very well adopt the Vita like the PSP before it, which would extend the system's life by as much as a couple of years.

Is the PS2 dead yet ?

Dead means it doesn't get more software sales ? Or hardware ? Because DS was already discontinued but it is still getting software.

PS4 - 2025 (5 years after PS5 )

Xbox one - 2021 (1 year after Xbox Two)

WiiU -2015 (replaced by a true next gen console)

Vita -2025 ( will live alongside PS4 as a companion)

3ds - 2017 (replaced by a higher res model)