In my opinion, remakes should only be made for movies that could have been better, not for classics that stand the test of time. With that said, here are a couple of movies from me.
Rookie of the Year - I loved this movie when I was a kid, but as an adult, while still a little fun, doesn't hold up quite as well. I think this should be remade with the same storyline, but make it PG-13 or even R, and give a more realistic feel to the movie, instead of all that goofy, illogical shit.
Silver Bullet - What a coincidence, another movie starring Gary Busey

Seriously though, does this movie piss anyone else off? What a piece of shit. I love Stephen King's work, and this was the first of his work to get thrown in the fucking toilet by Hollywood (though I do feel Carrie is one of the most overrated movies of all time and didn't give the book justice, but many, many more feel differently, so I'm in the minority on that one). It's like they didn't even try with this one. Anyway, I would love to see this remade by someone who actually knows what he/she's doing, and a cast that doesn't suck dick (though Corey Haim is okay in my book). This story is too awesome to have such a shitty movie. It needs to be remade,
NOW!
I'll come up with more later, perhaps.