The line was then further extended in several stages until 1870, when it finally reached Immendingen on the Black Forest Railway, connecting to Lake Constance.

Once the Ammer Valley Railway from Herrenberg was connected to Tübingen on 1 May 1910, the present form of the rail junction was largely achieved.

In the course of this work platforms will also be raised, circulation areas will be modernised and the infrastructure will be better aligned with operating requirements.

Two pairs of trains per hour will stop in Nürtingen and Stuttgart Flughafen/Messe station, running via the proposed Little Wendlingen Curve and a section of the new Wendlingen–Ulm high-speed line.

Diesel powered tilting trains will no longer run on the line, because they will be banned in the new Stuttgart Hauptbahnhof.

[10] Services will operate via Stuttgart to Heilbronn, Mannheim, Aalen and Karlsruhe providing connections without requiring changes of trains.

[11] The renovation of the Tübingen train station is considered by the Deutsche Bahn as a priority and will be carried out within the scope of the Europaplatz project.