Why is RE2 even an option? I know everyone wants it, I want it! But it's because the original got remade that we got an HD at all. REHD is still a Shinji Mikami game and RE2 was his production along with Hideki Kamiya in the director's chair. In order for you to get an upscale of the original experience you want to get the original makers otherwise you are going to get what you keep getting with these new games, an interpretation of said games. It's more than just upscaling the graphics, it's casting the actors, rewriting the script, create the scenes and any additions and alterations, all that went to the remake, and you want to trust the new Capcom to do it? You are not going to get the the same results from them, they are an entirely different group of people from the makers, an entirely different group of key people so even if they do a decent job they won't capture the same feel as the people who made it.
That and there is no stopping the making RE7, it's coming and with the success of HD Remake and Rev2 it's probably coming much faster. They will most definitely remake other RE games that are graphically higher and more compatible, like Zero, before they remake another PS1 game because it's much easier than it would to rebuild a game from the ground up.