Does Resident Evil 4 really need a makeover? It's not even that old. I thought the graphics were fine, and the gameplay is fun enough that I still take it out once in a while.
On the other hand, I really liked Code: Veronica. It was stupid and cheesy, but for me it was stupid and cheesy in a way that I like, similar to watching bad horror movies on Chiller or FearNet... lots of over-the-top sequences and reveals. I still own the GameCube version of it, but when I try to play it these days, I'm like, my God, how did I ever tolerate RE before it was RE 4?! Within five minutes of combat I want to set the console on fire.
Code: Veronica doesn't need another port, and I won't buy it again if it DOES get ported. What it needs is a gameplay overhaul (I don't care about visuals much) that keeps the derpy story and situations intact while making the combat faster and more fun.