Please find a link to the recording of the MX-One V7 overview by Edward Lambert. Release had been delayed and currently the new build should be available for 22nd August 2018.
https://cc.readytalk.com/cc/playback/Playback.do?id=1aszr2
The Mitel User Group site has a new look. A few sections are still on their way — check back soon, or reach out directly.