Since once again, Europe got the whole thing early.
The level cap has been increased, but not to 250 like I expected, but 255... not anything major, though. There are a bunch of new potions: one that reduces weak point gauges faster (125 bronze mats, 25000 Rupees), one that increases damage against giant bosses (150 bronze mats, 30000 Rupees), and one that allows you to absorb magic from giant bosses (175 bronze mats, 35000 Rupees and a very grateful Young Link). There are also more additional medals, including a platinum trophy-style "get all medals" medal.
As far as Ganon goes, he starts with a few different attacks (controls are VASTLY different from regular warriors, for instance he has a spinning attack instead of blocking), but when you kill a giant boss (with those attacks, since he doesn't have items), you get that boss' special attack, Megaman-style. Said attack allows you to kill other bosses easier - for instance, Argorok is weak to King Dodongo's fireball, and when you hit it with that its weak point is exposed.
There's also a hidden additional Challenge Mode thing featuring a giant Cucco, as a joke obviously. It's practically identical to the Ganon mode, and is unlocked by getting an A rank in Ganon's "Survival Battle Level 3" stage. Understandably, the Cucco is as gimped as Ganon is OP, with only a spammable weak peck, a slightly stronger peck, a special attack and a Focus Spirit mode. As a side note, Ganon and the Cucco can't access the Bazaar for anything, not even increasing their levels.
And yes, the load times were fixed. Thank GOD.