It's fruitless to hope for Ganondorf's moveset to be given to someone else.
It's fruitful, however, to hope for another Ganon being playable with an original moveset, if you care that much about it.
Well "fruitful" may be a misnomer, but basically, if Zelda fans rally around a new Ganon being playable, that doesn't replace the current Ganondorf (because, honestly, Sakurai's statements have made it clear that that's never gonna happen), and keep it up for about 10 years if Smash lasts that long, then we might be able to make it a reality.
The problem with Zelda character requests, in general, is that they usually rally around side characters from the newest games at the time of each Smash game, with support generally dropping for characters of older games. The three big exceptions I can think of are Tingle, Skull Kid, and Midna, but their support is middling compared to heavy hitters of other series like DK, Metroid, Mario, Fire Emblem, and even Animal Crossing. I propose that the problem is that Zelda's cast is like Fire Emblem in that it changes almost every game, but unlike FE the main characters are usually Link, Zelda, and Ganon.
There's someone who IS a main character, not a side character who, at this point, Sakurai would most likely see as Assist Trophy material given Tingle (well, not in Ultimate), Skull Kid, and Midna's current status. We have multiple Links, and multiple Zeldas, but only one Ganon. I propose we rally around Ganon from the 2D Zeldas like A Link to the Past. Even without factoring in his human form, Ganon is the main antagonist of multiple Zelda entries rather than just one or two. Ganon is the antagonist of Zelda 1, the reason monsters hunt you down in Zelda II, the true identity of Agahnim and final boss of A Link to the Past, the true final boss of Oracle of Seasons / Ages, the one behind Vaati's actions in Four Swords Adventures, the body of the final boss in A Link Between Worlds, and the final boss of Breath of the Wild (though that last version is drastically different than the previous Ganons).
You can argue that the "blue-skinned pig demon wielding a trident" form of Ganon hasn't been seen in a long time. However, if we take from K. Rool fans' example and band together under one major fan want for the Zelda series, we can make it happen regardless of how long it's been since Ganon's glory days. It's up to us, especially since Hyrule Warriors Ganon is probably owned by Koei Tecmo considering the lack of Hyrule Warriors stuff in Ultimate, so rights would be an issue (plus, if I was approaching Koei Tecmo for a playable character, I'd rather go for Ryu Hayabusa or a Fatal Frame character than a version of a Zelda character only seen in a spin-off they developed).