Fudge yes, man. I played the original AND Crisis Core specifically for this reason. I love FFVII to death. There's not a whole lot more they could do to make the original game better. I mean sure they could add some secret stuff and add in that traveling salesman sidequest... but other than that you can't really make it much better than it already is besides giving the graphics an overhall. Could they ruin it? They certainly could; if they make the battle system nonsensical, censor some things like Wall Market and Cid's smoking habit, and throw Genesis in for some stupid reason that doesn't involve him getting beat up 5 ways to Sunday. But while Crisis Core was definitely different, it certainly wasn't BAD by any means, and thus I have some faith that they'll actually do it right. Even if it isn't exactly the same it's still a remix of a classic, and remixes aren't always bad.
At the very least I am reassured that if they fail, the whole of the internet will set Square Enix on fire with extreme prejudice. People have been waiting for this for a really long time, and they'll cetainly be vocal about what they think when the remake is released.
But really, if Genesis does show up and I don't get to beat the stuffing out of that prick I'm gonna be mad! >_>