Elite: Dangerous studio Frontier Developments hosted atoday over on YouTube Gaming in which they extensively discussed the upcoming Horizons expansion. During this Q&A, it was announced by Frontier Development CEO David Braben that Horizons will be kicking off with the Planetary Landing Beta on November 24th.
Flying around the depths of space has always been at the heart of Elite Dangerous, but the first step into Horizons will have us traveling down to planet surfaces and getting personal with new exploration options for planet scanning and resource collection. Frontier Developments has mentioned that Horizon won't be one expansion, so much as a "season of expansions", starting with Planetary Landings.
You can find out more at theHorizons is expected to launch during the holidays this year.