That's consistent with what I've heard - half a dozen 818v3 units in the first production run expected to be available at the end of September or shortly thereafter, with the upgrade kits 6-8 weeks later. Firmware upgrades on SE speakers to be issued at the same time to make them MQA ready, but no timetable for MQA to be inferred from this. MQA timetable now the responsibility of MQA Ltd rather than Meridian.

Streaming: Roon, NUC, QNAP869 NAS
2ch system: dCS Vivaldi, Audionet Stern, Audionet Heisenberg, Magico Q1
Retro system: 101/104/105, Red Rose Spirit