Actually i think they just fucked up everything with the hope of Diablo Universe player i heard so many angry peoples talking about it last week-end at the cabinet, they might just at least said they're working on Diablo 4 or Diablo 2 Remastered, even if they dont have anything to show us like they did with The Elder Scrolls 6. A logo.
And with the face reaction of Wyat Cheng when everyone booed he was totally surprised and chocked. Im pretty sure he though this mobile game would be great in his own little world mind. I think they just failed once again.
And i dont know if you guys heard about it they hired some fake journalists to talk about how good is the game to calm the failure and a suposed Diablo 4 canceled annoncement at the blizzcon.
Source in french ----> https://diablo3.judgehype.com/news/l-annonce-de-diablo-iv-prevue-a-l-origine-lors-de-la-blizzcon-2018-157584/