https://www.gamespot.com/articles/pcs-age-of-empires-definitive-edition-gets-new-rel/1100-6456207/

Age of Empires: Definitive Edition will launch on February 20 for PC, Microsoft announced today. The new version of the classic RTS includes "completely" re-done assets, along with multiplayer functionality through Xbox Live (there is also local LAN support).

Also in the Definitive Edition is a new orchestral score, in addition to a re-recorded soundtrack. Additionally, every campaign mission now has voiced narration, while the campaign and scenario editor now lets you create your own custom campaigns. These can then be shared with other players through the Age of Empires website.