Yeah, its too early to tell, but my initial reaction would put Dragonflight behind legion in terms of content, but above everything else. MoP and BFA close behind. BFA had a lot of content, its just a lot of it wasn't any good.
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Did the devs not say that the race could be opened up to more classes in the future? If that were to happen, we could put it on the level of 1 new race id say.
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Invasions are really just world quest and scenario tech combined. I don't think there's anything entirely new there, but sure.
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Yeah, I have a feeling it will end up being early Q2 for DF.
April 2023-DF
Q3- Overwatch pve
Q4 Diablo 4
Either way its going to be a massive year for blizzard.