I am very interested in this game. Although I think that Blizzard is being pretty stupid in making them mobile only, especially having Genshin Impact as an example.
Diablo Immortal and the Warcraft mobile game should be cross-platform. I think that especially with Diablo, they are scared that Immortal could overshadow Diablo 4 if available in several platforms, which I am pretty sure that will happen even if It is only in mobile.
Focusing in the Warcraft mobile game, I thought about It quite a lot. It will not be a strategy game, because Blizz abandoned that genre. It will not be a Diablo kind of game, as they already have Diablo Immortal for that, and It will not be a card game, as we already have Hearthstone. It cannot be just a Warcraft MMO in mobile, as It would kill WoW. So what options do we have?
A Warcraft Genshin Impact, and man, that would be absolutely amazing. Imagine being able to play as Jaina, Arthas, Kael'thas, Thrall... Each with a different skill set, exploring Azeroth in a new way. I am pretty sure that this kind of game would kill WoW if available on PC too.