That's... a very optimistic prediction. 20 million lifetime for the X1 and PS4 when there aren't even that many in people's homes yet..? Unless this game keeps selling for a ridiculously long time and at a ridiculously high rate, I don't see it happening. Watch_Dogs had an amazing first week, but 70% of its current X1/PS4 sales occurred during that opening week. The overall numbers are impressive, but aren't sustainable. Destiny will certainly do more than that, and provide a bigger hardware bump, but I just really don't see it achieving the numbers you predict.

35 Million............HAAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

Maybe for the entire IP over the Generation

"10 years lifespan"...

PS4/XB1 are headed for ~100M+ combined install base in a few years, and I'm thinking that the sales model for Destiny will be closer to WoW than a traditional console game where the previous games will be made obsolete by sequels.

They are more probably going to expand the Destiny universe with expansions and full-scale patches along the way, so Destiny will have updated SKUs over time that still tie into the same overall gamespace. Eventually a 'vanilla' Destiny might sell for $19 digitally or whatever, with the current/premium versions selling for $50-$80 with varying amounts of expanded worlds opened up/etc.

If the content is good enough and they get people hooked sufficiently, 35M might even be fairly low to be honest. It really depends on how the launch goes and how it sustains/carries into 2015. It will be damned interesting to watch.

There is absoutely no way that there will only be Destiny 1 that recieves updates over 10 years. They will definitely release Destiny 2 & 3 by the 10 year mark. 35M across the 3 entries will happen, but will not if there is literally one game. General society will not want a game 10 years old that is not WoW on consoles. This is not an MMORPG

I thought there is no PC version!?

Given that this is an online-only game, there's literally no reason for them NOT to soak up that PC $$$. Diablo 3 on PC probably sealed that deal for them honestly.

Choice for Activision :

(A)- Sell only on console, make $XX Billion in profits.

(B)- Sell also on PC make $XX Billion MORE in profits.

Logic.

(also, some leaks indicate 2015 PC release).

dunno if they will do 10m on PS4 and X1 each, but on all platforms 20m should be achievable.

10m by the end of the year shouldn't be much of a problem.

I'd say it will probably reach 15 million shipments across all platforms LTD but 35mill? That my friend is a pipe dream on steroids!