There is only one way how to play Warcraft on 16:9 with correct screen. since patch 1.25 blizzard added resolutions for 16:9 monitor but they said you still cant play this game with correct screen:

Command the Night Elves, Undead, Orcs, and Humans as alliances shift and. It is a remake in the truest sense, featuring a thorough visual overhaul, a suite of contemporary social and matchmaking features, and more.

Can somebody tell me how to play Warcraft 3 in widescreen? Whole time i was playing on normal '4:3' monitor but last days i am playing on widescreen (i got lcd 16:9) and its very bad i have scretched/deformed screen (my resolution 1600x900x32) but warcraft 3 was created for 4:3 only. Hello everyone does anyone know where I can find high resolutioned maps for the classic WoW zones Elwynn Forest and stuff pre-cataclysm, atleast HD (1920x1080 px) I look into the old WoW's installation folder and googled but couldnt find any in an appropriate resolution. A Classic Favorite, Reforged Warcraft III: Reforged is a stunning reimagining of the revolutionary real-time strategy game that laid the foundation for Azeroth’s most epic stories.

Warcraft 3 high resolution