Route_type match with new value of transportSubmode NEtex 2.4 ?

[Pauline Attal]

With the release of NeTEx 2.4 (including the French profile), new submodes such as schoolCoach are being introduced.

Is there any plan to update or extend the GTFS route_type values (or related extensions) to better support these new NeTEx submodes ?

If not, are there recommended best practices for mapping such NeTEx submodes (e.g. schoolCoach) into the existing GTFS route_type framework?

Thank you!