Variety has reported that Blizzard has posted in their official forums that in 2019 they will reveal new Diablo products, tho they would rather show than tell and as such are waiting until things are a bit further along than they currently are. This seems pretty normal but many people feel it is nothing more than a PR stunt over the anger over Diablo Immortal that has many fans upset. Personally, I am interested in trying it, but we will see what the future brings. Best wishes and may the gaming gods bring you glory.
Savior Gaming 