First off, I am just gonna assume that you are mostly a nintendo gamer. And that sad fact kinda makes threads like these irrelevant cause well, you are a fan.
Having said that, theer is a difference between a port, a remaster and a remake. And even more importantly, there should be a difference in expectations when you consider the generation and/or the platforms of the existing titles.
Ports are simply just making a game to run on a different hardware. None of the original games assets will be changed. The game may only at best benefit from running at a higher resolution and a smoother/higher frame rate.
With remasters things get a little more interesting. The games original assets are mostly left untouched but its resolution, frame rate and even textures would all be updated. Very rarely would you see new models being used in remasters, but you could see a boost in texture detail (some) and other assets like lighting and sound...etc.
Remakes are usually complete overhauls of a game. Where the only thing the remake may have in common with the original are the overall games presentation, scenario, HUD (sometimes even this is shelved under "classic")...etc.
Now the problem with remakes, is why even bother? you might as well just make a new game.







