Sneak peek about the future of Elite: Dangerous in 3304: Beyond.
The Frontier Expo 2017 revealed some bits of content.

The Outpost #88: Your weekly shot of Elite: Dangerous.
Thargoid Adaptability, Frontier Expo, Science and community!

The Outpost #87: Your weekly shot of Elite: Dangerous.
post-2.4 details, Thargoids, Lore development and community!

Everything you need to know about 2.4 and the Return of Thargoids is in there.
Non-human signals, ships’ marks, drones and mysterious messages!

Check out the release notes – Update 2.4, The Return!
Details and presentation

The Outpost #86: Your weekly shot of Elite: Dangerous.
D-4 Update 2.4 The Return, Thargoids pre-events and community!