The Starcraft site is clearly doing some sort of intentional glitch out ARG, and the rumour going around is that they are doing some sort of singleplayer shooter set in that universe.
https://www.tweaktown.com/news/113435/blizzards-next-starcra...
https://www.tweaktown.com/news/113435/blizzards-next-starcra...
(The site also seems to indicate the new game's plot takes place about 75 years after the end of SC2.)