Since a long time LFS don't get new maps, it would be so nice to have tracks like nordschleife, etc.

Unfortunate this is not going to happen very soon.

This is the soonest possible in my eyes. Speculation.

At the moment is being worked on physics and graphics overhaul.

When this is finished (lets say mid 2024), then maybe there will be announced a track editor (perhaps to be included in the LFS Editor).
This could take ~ 1 year (judging by the release of the Modeller and Vehicle editor - LFS Editor).

And then the modding community could make such tracks in maybe a few months.

So, 2-3 years from now hopefully there will be some light on the matter by the devs.

EDIT: there will be some new tracks coming with the graphics update.

if you are looking for news on these new tracks, go on 20th anniversary announcement. However referring back to map editing, maybe with the track editor in a couple of years there might be the possibility to create real life tracks, but without license like skin making. Real life licensed tracks are unlikely to be announced by the devs judging by how long it took to get one licensed track and how there aren't any further notices on the subject, that said it would be great to have them.