That’s nice to hear. So I guess Deathwing won’t be the last hero after all. That’s nice!
However saying that we’ll get a new hero in June is not true, if we were we would’ve known about it already, and also 4 or even 3 new Heroes this year is, imo, unrealistic. First half of the year has already passed and there were none, so I think 2 new heroes in 2020 at most. (and probably even less in the coming years )
As for the new heroes here’s what I think:
Warcraft: Honestly there are dozens of WoW(and even Warcraft 3) characters, that are kinda overdue and would fit in this game nicely. Some examples are Vol’jin(there are no troll heroes in game), Kil’Jaeden, Archimonde, Cairne Bloodhoof, Velen, Grom Hellscream, Moira, Khadgar, Alleria, Turalyon, Rhonin, Vereesa, Taran Zhu, Thalyssra. I know that some 50% of heroes are from Warcraft, but still, it’s Blizzard’s largest and most complex franchise. There should’ve also been (many) more Warcraft battlegrounds, there were a lot of potential like Ashenvale, Barrens, Gilneas, Arathi Highlands, Jade Forest, or not even necessarily Alliance vs Horde battlegrounds like Uldum or Broken Shore or Zangarmarsh. Sadly, I’m kinda certain we won’t be seeing new Battlegrounds
The hero from Warcraft we’ll imo most likely see is Lady Vashj(with newest Hearthstone expansion and WoW TBC all but confirmed). I also hope Jaina and Tyrande will get their BfA skins, they’re kinda overdue.
Starcraft: The thing this game imo mostly needs from Starcraft is a female Protoss. There are quite a few Protoss heroes, but all of them are male so Selendis, Vorazun or Raszagal would be very welcome. As for Terrans, General Warfield and Mira Han would be good, but Horner and both Mengsks would also be nice. As for the Zerg, they don’t have many characters and all are pretty much present.
Diablo: When it comes to Diablo Baal is the only Prime Evil that’s missing, but the other three Lesser Evils Belial, Duriel and Andariel would be nice. As for the heroes I think the Druid(D2 and D4) and Sorceress(D2 and D4) would be the most likely. That also makes Duriel and Andariel(both confirmed in D4) kinda likely and maybe Lilith or Inarius.
Overwatch: Never played OW much(FPSs are kinda not my thing), so I can’t say I would personally care much about any of these. But here I think it would actually work better the other way around, having Qhira retconned as being from idk Cameroon(that became Wakanda in Ow time) and having her join OW and adding some of the most popular Ow heroes like Winston(kinda overdue), Reinhardt, Mei, McCree would work profitably for both, and possibly make both a bit more popular, who knows.