The report in question is from Jason Schreier, him of the plentiful journalisms and assorted newsbrokage.
He’s got a book, Play Nice, about Blizzard’s history out on 8th October.
(He was desperate.)

But there was no appetite among Blizzard’s executive team for a new RTS game.
“In some respects, Warcraft III: Reforged does a serviceable job of fulfilling that need.
In others, it’s a bit - dare I say - underforged.

In further respects still, some people might wish it had never happened.”
Meanwhile, Blizzard continue to butt their heads against the much-aborted daydream ofa StarCraft shooter.