The fact they did diablo immortal doesn't mean they aren't also doing D4.
The company is huge.
Looks like they had some legal problems with this chinece company, probably they came out to agreement and chinese are making a game for blizzard.
Diablo 3 was in development for about 9 years.
If they are already making Diablo 4, it makes sense they keep it secret yet.
Even if they were able to release D4 in 2-3 years from now, they probably will wait until 5-6, since for the moment they stil make lots of money on D3.
(D3 on switch will probably sell very well, some people will also buy PC and PS4 versions, and there are roumors about diablo animated series on netflix - I bet it will also look like Diablo 3 and will be kind of advertisement for this game).
This post was edited by GoMeZ898 on Nov 6 2018 01:34am