From the looks of it, this is looking like it will follow the trend that Hyrule Warriors went with.
Originally, that game started with just Ocarina of Time, Twilight Princess, and Skyward Sword. Then as time went on, they would eventually add content from games like Majora's Mask, Wind Waker, and Link's Awakening. Maybe it's the same thing here.
They're starting with Awakening, Fates, and Mar-- I MEAN, Shadow Dragon. Then, they'll add other games like Path of Radiance and Radiant Dawn, 7, and Echoes. Only time will tell, I guess. But even I'll admit, as much as I love Awakening and Fates, and understand that they're going with those games to sell this game on (being the 2 best selling games in the series by a mile and all), I'd like to play as some other characters as well COUGHAlmandCelicaCOUGH.
Hardware Comparison Threads:
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PlayStation/Xbox/Switch: 2022 Edition
PlayStation/Xbox/Switch Hardware Battle: 2021 Edition!
PlayStation 4/Xbox One/Nintendo Switch: 2019 vs. 2020
PlayStation 4/Xbox One/Nintendo Switch: 2018 vs. 2019
PlayStation 4/Xbox One/Nintendo Switch: 2017 vs. 2018
PlayStation 4: 2015 vs. 2016 vs. 2017