i think it will do really poor if they don't port it to ps4/xbone.
dark souls = a very hardcore game.
hardcore gamers = the most likely to be early adopters (ps4).
...listen, i'm a huuuge demon/dark souls fan. HUGE. but by march i'll have a ps4. by march i'll have a ps4 backlog 5-6 games deep with several more just around the corner. i'll play a next gen port of DS2 (even a late one) but i don't think i'll be turning my ps3 on anymore by march.