В 2014 Близзард уже анонсировали Диабло для мобильных устройств в качестве первоапрельской шутки

[APRIL E©©LS] ASCEND T© VICT©RY WITH HAPPY REAPER™
Lylirra 4/1/2014 P363
HAPPY
REAPER™
Ascend to Victory!
The next next chapter in Sanctuary's epic saga has been unveiled. Summon your sickles, put on your pointy hood, and get ready for Happy Reaper™ —the definitive Diablo experience coming