Expansion Minor Extension From Frankfurt (main) Hbf

Frankfurt to Würzburg is a timetable servce for the DB BR 111 n-wagen using the 463.0 Brndzf cab car via Hanau, on Kinzigtalbahn, so why not just finish this short extension ?

It is like Ludwigsbahn having S-Bahn AI services into Heidelberg which is the next town east of Mannheim and a famous Neckar River destination world-wide, but we can only see the rails ...

 

And how short is short? You say next town East but what does that mean?

 

That's not short. Its quite alot.