TYPO3 Core

I'd say there's no need to put anymore energy into this module. The logging framework project will provide a new backend module anyway...

Yes but if the BackendUser Model will be into extbase with version 6 it is a no brainer to replace the model of the belog modul. i have actually a local branch with that change because i test my model with that change a bit.

I'm absolutely fine with a BE user model, but there's still no sense in putting energy into something that will be gone with 6.0 ;)
Also we won't have a filter for BE user - at the beginning at least... ... remains to be seen whether we need it at all...

Thanks for the background information. Then please let's mark this ticket as rejected.