During the BlizzCon 2015 keynote stream, Blizzard head Mike Morhaime let slip what faithful StarCraft II players can expect to see after StarCraft II: Legacy of the Void launches next week. Yeah, that's next week -- are you finished playing through everything else just yet? That's November 10th. You know, Fallout 4 day, too.
The future of StarCraft II will continue in the form of special mission packs that will be available in the future, known as StarCraft II: Nova Covert Ops. Nova Terra will be returning in this special pack that's scheduled for arrival in Spring 2016.
Brittany Vincent posted a new article, StarCraft II Mission Packs Are On The Horizon
Very excited to hear about this! I'm not ready to be done with SC2 after LotV comes out.