I want the Virtual Console releases to be the definitive version of games, with various updates.
I want:
60Hz, improved and/or more consistent framerates for all games.
Improved resolution. (Not going to happen.)
The elimination of NES/Gameboy issues, like sound effects blocking background music, and graphical errors. (Not going to happen.)
Gameboy Color style updates to Gameboy and Virtual Boy games. (That can happen to Gameboy games if they wanted to...)
All the little quirks from hardware, like the alternate colours from holding button combinations on the Gameboy Color. (Why would they do that?)
The consolidation of region exclusive game content. Being able to select whichever languages you want from within the game. (I don't think that's going to happen...)
The consolidation of all game content from various previous releases. Even DLC, and time-limited content. (Kinda. Not exactly that but there are accessible promotional stuff in Mega Man Battle Network VC releases actually.)
3D, widescreen, and leaderboard support when appropriate. (Only for 3D Classics.)
Cloud saves. (If they wanted to.)
A wider range of control schemes, and being able to completely customise them. (It's very customizable on Wii U.)
Achievements similar to Left 4 Dead, that help to teach you about the game. (Not going to happen.)
Localisation of previously unreleased games. (Sin and Punishment in English.)
Online and improved local multiplayer additions. It would be nice to be able to play Mario Kart 64 with 3 friends in one room, two friends on the same TV in a different country, and 3 strangers online. (Forget online.)
Easier connections between games. Carrying over data from Golden Sun to Golden Sun 2, and Fire Emblem Path of Radiance to Radiant Dawn for example. (Not going to happen.)
Fixed glitches. (That happened in a few games.)
Improved localisations, fixing mistakes and inconsistencies. (Usually small changes but still done.)
Completion and release of near-finished games. (Not going to happen, but for unreleased finished games, maybe...)
New content making use of finished, but unused assets. (Not going to happen on VC but Super Mario Advance 3, that Yoshi's Island port does that.)
New content made from remixing existing assets. (NES Remix.)
New difficulties. (Not going to happen.)
A Library feature for all games including art, illustrations, music player, character biographies, story synopsis, bestiary, and other information. (...you have Smash Bros, for the most part.)
The ability to check the progress of friends, and compare your own progress to theirs. Seeing which trophies your friends have that you don't in Smash Bros., or seeing who's the better fighter by comparing stats. (Not going to happen.)
A stats page for all games, like Advance Wars: Dual Strike, and the Smash Bros. games have. (Not going to happen.)
Am I asking too much? I think not.