Blizzard president says there will be more news on Warcraft 3: Reforged in June
However, new Blizzard president Mike Ybarra has teased upcoming news for the game a couple of times. Back in April, Twitch streamers Back2Warcraft cut a clip of him speaking on stream saying "I think you will hear from the team pretty soon on plans there." Then, just a few days ago, Ybarra responded to a Tweet asking for an update on Reforged, saying "You'll hear from them soon (in June)."
While it's unclear exactly what this update will be, given the length of time between updates and Ybarra's slow teasing of news, it seems unlikely it will be insubstantial. The 20th anniversary of Warcraft III's release, July 3, is also just around the corner, so it would be an appropriate time for a large update, if one is coming.