We all heard of the "Ura Zelda" restoration project.
We also saw "Mine-craft" players remaking Zelda levels.
I say why not attempt to take all the maps from the games and piece them together for one huge MEGA QUEST.???
Pick one game as a format or starting point and expand accordingly. Just include the other maps and dungeons to make one huge game.

After that there's the question of witch game should be the model that you play as.?
Everything is going 3.D. so I suggest the Occorina of Time for the N.64 to be the template to expand on.
You complete the majority of that game. Just play till you get the Bridge to Gannon's castle unlocked. Another quest from another Zelda title is then Unlocked and in order to enter the "Floating Castle" you have to complete another Zelda title's maps that are diversified by the O.O.T.'s map. The Dungeon's in O.O.T. hold warp zones to the next dungeons to complete. The same goes for over world side quests. The villages have new doors to warp to other zelda map locations from other games to complete "Side Quests" from various other games in the series. After the Quests From the other titles are complete you score "Quest Keys" that Grant Link Different Abilities. To Finally Defeat Gannon forever and make the game more fun for the player. These Specific Hacks Will Include Various Different Challenges for the Hacker but can be done. Take for example using The Oni Link Mask From "Majora's Maska" or Firing Bomb Arrows From "Links Awakening". Extra Magic items to cast that have different effects would be cool too. An Item to restore links Zap would be a final Item before The Final Raid On Gannons Flying Castle.
Additionally, from the Map Overhaul, the Inventory increase, and the size of the game greatly increased... The Final Castle Climb will include various Boss Fights From Select Boss's that Granted you the "Quest Keys". And... The Final Fight With Gannondorf will be altered to Bring a sever need for the "Quest Key" Items.
Finally the story will be altered too.
The Ending Will have Many alterations to Add more to the experience.
I'm thinking of "Nintendo Power's Magazine Comics" For "A Link To The Past" might do Well With A Few Twists and Startling Shocking Conclusions. Plus a few New Ideas as well.
BUT.
I'm just "Pipe Dreaming." (Think I have a Title ..."The Legend Of Zelda. Endless Waltz.")
Anybody else want to add or subtract from this Idea?
Because...
I'm Done. Stick a Fork in me.
Peace.
Good Luck To All.