According to a German photo web site (http://www.photoscala.de/Artikel/Branchen-Ticker-49-13) Rodenstock stops producing the following LF lenses:

Apo-Sironar S 100 mm
Apo-Sironar S 180 mm
Apo-Sironar S 240 mm
Apo-Sironar S 300 mm
Apo-Sironar S 360 mm
Apo-Macro Sironar 120 mm
Apo-Macro Sironar 180 mm
Grandagon N 65 mm
Grandagon N 75 mm
Grandagon N 90 mm

It also says that even more lenses might follow.

Not really a total surprise, but still sad.