Homeworld Trailer and Announcement Tease

A tweet from Homeworld has a brief teaser for the space strategy series, which is now owned by Gearbox Software (thanks PCGamesN). The tweet includes a tease of an announcement coming next week at PAX West:
Celebrate 20 years of Homeworld with a special announcement on August 30th during the Gearbox Main Theater Show at 1:30pm PT from PAX West!