They will almost certainly be seeking a functional streaming app (at minimum) from the components of Roon as the HK/Arcam MusicLife app is dreadful (I could not get it to work and keep working at all).
Harman acquires Roon
Harman's press release: https://news.harman.com/releases/harman-acquires-roon-a-popular-multi-device-multi-room-audio-technology-platform
Roon's press release: https://community.roonlabs.com/t/roon-acquired-by-harman-international/257414
In broad strokes, Roon will continue exactly as it is.
All monthly, annual, and lifetime subscriptions remain valid and will continue without interruption.
Trials will continue and convert as they usually would.
There will be no changes to our billing processes.
This community site will continue to be the home for discussion about Roon, audio, and music.
Our customer success and support services will continue to operate as they do today.
All supported audio products will continue to work with Roon, and we’re committed to certifying new Roon Ready and Roon Tested products from all brands.
The familiar faces from our team will be right here as always.