Bungie have officialy said that they "make console shooters" so I'd say the chances aren't good. I'm pretty sure I remember seeing that one of the new gen consoles has, or will soon get, mouse and keyboard support. Wait till destiny comes out, then see if you think you'd get enough playtime out of it to be worth buying a console for. You could even get a second-hand 360 or ps3 to play it. Even if you'd prefer mouse and keyboard, at least you'd get to play it!