I'm still experiencing massive battery drain when bluetooth and / or wifi is enabled.
As soon as I enable bluetooth, the CPU never goes to sleep. The same happens on some wifi connections. When I'm at home and my phone is connected to my wifi, everything is fine. When it's connected to my companies wifi, I see the same issues (battery drain because the CPU no longer enabled sleep mode).

As a first I'm now downgrading from 3.0.3.8 EA back to 3.0.2.8 and hope Jolla will fix this prior to the official release of 3.0.3.