wii = ~100m
360 = ~85m
ps3 = ~85m
anywhere between 260m and 270m for consoles is about right. keep in mind this wasn't a market for a lot of startups. traditional publishers are who made a lot of money in this gen and it's they who also suffered a lot of problems.
just trying to grasp for a good feeling on the upcoming generation is hard. japan is pretty much meaningless, and other markets are becoming accepting of video games, but will they offset what was lost? will video game consoles even be that big of a deal in five years? can we go so long without an update again? eight years was a longass time. do you think 2020 is an appropriate year to be seeing the next xbox, nintendo system, or playstation?
all that stuff works against what might be reasonable for this upcoming generation. i personally don't feel as optimistic about it just off of the contraction we're already seeing, and the dip in variety that's taken place over the last couple of years.
so my guesses:
wii u: 11m
japan: 3m - it had a remarkably good holiday last year, given what preceded it. i think it's something that can be repeated at least for this year. sales are already nearing 2 million, and with smash bros. and even better bundles, i think the platform could see the better side of 2.3m by the end of the year. after that, there's no real system seller and the thing will just have to move off the existing value. zelda's basically a dead franchise over there, and whatever else is coming out will probably only cater to the existing fanbase.
europe: 3m - european sales are so shit for this system. i think i'm being pretty optimistic with this guess, although like with america, there's been a bigger push than japan to get wii us to customers. so maybe it'll actually make it to this number after all.
north america: 5m - current sales are roughly 2.5m. if things continue along this route, and sales are at least what they were last year (about 700k for november + december), then wii u will be at 3.5m in the us by the end of the year. i don't think this is an unreasonable prediction. after that, sales will probably die down from 2014 for most of 2015, and only tick upwards slightly when zelda comes out. but who knows, maybe splatoon is actually going to be a system seller and drive millions of units in the states. regardless, i wouldn't expect much more than another million and a half out of the machine in the us, especially if 2016 is the last year it's on the market.
rotw: negligible. i don't even know if nintendo really ships to more than these regions, but i can't believe it would be substantial.
xb1: 44m
japan: 0.5m - the xbox 360 actually sold 1.65m units in japan, improving on its predecessor by over 200%, but given the current state of japan, i think things will slide way back down to the original xbox at best.
europe: 16m - it will probably do well enough across the pond to keep up a good second place appearance next to the ps3, but given the current split between the us and europe, i don't know how microsoft will win people over in what has been traditionally sony's turf.
north america: 24m - i kind of expect a decent recovery from microsoft on the platform, and a good push in the american market where they have espn and football and calaudoody. i think they have lost and will continue to lose a lot of customers to sony and the ps4. it will be rough.
rotw: 3m - i don't even know. i'm just kinda putting this here because the numbers look pretty sad overall now that i think about it.
ps4: 83m
japan: 6m - the system's off to a rough start right now, but it sorta reminds me of the vita. i don't think sales are representative of where they will be, and in a way it's somewhat encouraging that it's managing 7k in a week when there's really nothing to cater to the fanbase. 2015 will give a fuller picture, since it's also when a lot of japanese games are hitting. i don't think there's any denying that the importance of the console market has diminished, either.
europe: 32m - i guess i just kind of expect europe to pretty much make this their thing.
north america: 35m - sales will probably more resemble the ps1 than the ps2, wii, or xbox 360. still, it will have a solid place as the market leader.
rotw: 10m - again, i don't even know. sony's been successful in markets nobody really considers but at the same time those numbers aren't made public. then if china actually becomes a thing, maybe it'll be even more successful than just this.
so i guess for me i'm looking at 83m + 44m + 11m for 138m or so in the console space over the span of about 5-6 years. i think that even if these numbers are off sony is the only manufacturer who has the chance of not facing contraction of any kind and even the possibility of growth over the previous gen. but this doesn't even resemble the gen preceding last (ps2 - 155m, xbox - 24m, gc - 22m, dc - 10m = total - 211m), but the last half of the 90s instead (psx - 100m, n64 - 33m, saturn - 9m = total - 142m).