two things wrong here. first of all, if S-E does a remake, no way it's going to be an exclusive - not with all the 360 product penetration nowadays. second of all, if S-E ever does a remake, it's going to be an obnoxiously huge soundtrack that sells really well and makes a bunch of japanese rockers a lot of money. no fan-based soundtrack, not when there's THAT much money on the table.
konami did this as a way to keep production costs down, in the end. blood on the asphalt wasn't so good that it would attract the attention of developers (it wasn't that good at all), rather it just guaranteed them goodwill from the sizable community of contemporary, kinda-into-it gamers and made this something that newer players would be interested in, not just hardcore people.