If a "next gen" game is also on ps3/x360 (ala Destiny) Is it really Next Gen?

[Darwinianevolution]

It's basically a publicity matter. If you put the first game on the older console, maybe when their users upgrade to 8th gen they will buy the game. Also, in this moment we can't compare the 13 million consoles aprox. of the PS4One with the 160 millions aprox of the PS360.