I think anyone who became a fan of the RE series after RE4 who hasn't already played RE 1-3 would probably find the differences in gameplay and mechanics to be pretty jarring.
Like a lot of 5th gen games, where the transition into polygon graphics was a bit awkward due to technology constraints of the time, the original RE hasn't aged that well.
While I might play through this remake to experience RE one more time, I'm not really expecting much more than updated/modern visuals and the analog stick option, which is not to say that it won't actually be more than just that.
On the other hand, it is possible for Capcom to leverage a re-release of the original RE into a much needed return to the survival horror roots of the franchise that were lost when it became more action oriented starting with RE4.
But, I'm not going to get my hopes up.