We definitely won’t be getting Kaiser Leomon, but all the other stupid Frontier names should be reverted.
Changing Fairy to Kaze and blizzard to Koriaku seemingly out of some desire to please fans that complained about name changes, thinking we just like the “cool Japanese names” instead of keeping the names consistent across the adaptation and localization process is so bloody stupid I can barely even process it these days.
Thank goodness Joe isn’t from that era, because they’d rename him Mamoru or something and I’d have put my head through a desk.
Agreed on Kazemon, but I think Korikakumon is that way for the same reason BurningGreymon, KendoGarurumon, and MetalKabuterimon are, to create a link to the Adventure names, since it has Ikkaku in it. Honestly, I'm surprised they renamed Shutumon to Zephyrmon instead of Garudawoman or something because of that.
This might also be a good way to fix some mistranslations created by by the differences between Japanese and the origin languages of the names, like making Agunimon Agnimon (though again, this could be because of Aguni making a phonetic link with Agumon) and Diaboromon Diablomon as they're meant to be, but they probably won't touch those. You're right about KaizerLeomon though, at best we'd get EmperorLeomon, a-la Digimon Kaizer/Emperor and Kaizer/EmperorGreymon.