I could not wait any longer to try the Krypton version even if I had to work with an Alpha release.
So far I am pleasantly surprised!
The migration went fine, it looked like it got stuck during the migration knowing the progress bar after the install got stuck on the comment "addon migration in progress" but after a reboot via HSS it started up just fine and all settings are still fine. I run a combination of Emby for my libraries and DVBLink for live TV and both worked directly after the migration without any tweaking. So far no issues. First tests with video playback seams also fine.