I've always wanted a remake of Zelda 1, using similar maps and stuff, but with added sidequests and on the BotW engine. It would be a masterwork of gaming.
Sounds like a
great idea for a BotW mod.
Twilight Princess, hands down. Even though it is my all time favorite Zelda game, I've always maintained that TP is less than half the game it should have been. It really does show that nintendo even had greater things planed for TP that didn't make it in to the finished product.
Open the game up so that all the field areas are accessible from the start and allow Link to banish the twilight from regions in any order. Instead of the inane light tear scavenger hunt, I'd make Link hunt down and defeat minibosses until the region's main boss shows up. Along the way Link can interact with spirits and pursue side objectives.
Complete dungeons in any order.
Expand the game in general, in terms of content. More sidequests, more subplots, larger regions. Make Castle Town larger (like Gran Soren or Novigrad), the desert
much larger and feature a return of the Spirit Temple, and expand the Snowpeak region too and add an Ice Palace.
At the midway turning point of the game, make the Twilight Realm fully accessible. Like the Dark World from ALttP, allow Midna to let Link warp back and forth at will, adding new dungeons, new quests, altering every region of Hyrule to its Twilight Realm counterpart. Let Link get to know the Twili and the Twilight Realm the same way Midna has come to know Hyrule. The focus here would be on completing dungeons to undo Zant's curse on each region of the Twilight Realm, restoring cursed regions and the Twili to their true forms. In addition to being able to do this in any order, this would run parallel to Link's dungeon quest in Hyrule as well. Make it so Link can warp to and from each realm to access otherwise inaccessible areas in the other like in ALttP.
Add Lon Lon Ranch and the descendants of Malon, Talon and Ingo. It's now owned jointly by the two families. Cram it full of sidequests.
Add the Gerudo and Sheikah.
Give Princess Zelda a larger more active role as Sheik.
Revamp Kakariko Village to resemble a medieval village as usual instead of a wild west ghost town. Add more residents, more shops, more arcades, side quests and expand the graveyard significantly. Feature a return of the Shadow Temple and Well.
Add Goron City. Expand Death Mountain beyond the woefully tiny linear path. Add the crater, hidden caves and mines. Feature a return of the Fire Temple.
Expand the forest significantly. Make it a sprawling twisting labyrinth to just get lost in and find all manner of stuff. Ruined castles, lone towers, abandoned villages, lost wells, hidden grottoes, misty lakes... Feature a return of the Forest Temple.
Jabu Jabu and the Deku Tree return.
