I want it to sort of act as the Endgame of the Zelda series, combining a bunch of loose threads into a neat little bow. FSA did something like this, it's why I adore that game. Taking the open world from BOTW and Z1, the ability and spell system from Z2 and mapping it to Link's arm, the general dungeon structure of ALTTP or ALBW, the compelling story of LA, the terrifying Ganondorf from OOT, the sympathetic one from WW, the actual one from TP, the wind magic themes from MC, FS, FSA, multiplayer from TFH, the world-ending stakes of MM with the floating castle (and hopefully good sidequests), an expansion on the concepts of Malice central to Bellum's design from PH, playable Zelda from ST, the sky theme of SS. It could truly be a culmination of the entire series.
Or it could be zonai....