Playing through Dark Souls 2 atm...AMAZING!! I've had the game for 3 days and I've played for 30 hours!, anyways thats no why I made this thread.
The Souls series seems to be getting more and more popular, I don't know what Dark Souls 2 has sold but I imagine it will be pretty good. Anyways the best thing about this series is that it's popular all around the world. Japan is lacking Software atm Demon Souls 2 is bound to push hardware over there, and it's not even a gamble for Sony because It'll sell in the US and EU.
The series is also becoming increasingly more popular on the Xbox and PC community. Releasing Demon Souls 2 Exclusively on the PS4 could sway some of those gamers to buy a PS4. In fact im certain it would, the souls series now has a cult following of gamers who would purchase them no matter what device its on( as long as it's good(or smart phones)). I would buy a X1 if Dark Souls 3 was Exclusive and I'm sure many Souls fans would buy Demon Souls 2 if it was Exclusive to Ps4.