According to Jython\'s documentation:
Jython is an implementation of the Python language for the Java platform. Jython 2.5 implements the same l
Jython roadmap is definitely outdated.
However, on Frank Wierzbicki's Weblog (one of Jython's main developers) you can get an update, telling that Python 3 is definitely on the radar.
Unfortunately, it is not yet clear when, as it is stated in a comment in that same blog from 2010:
Jython will reach 2.6 and later a 3.x, but it's hard to give a solid time frame. I'm hoping to get a 2.6 out in a few months.
In an interview in 2017, Wierzbicki stated that Python 3 is desirable but difficult.
Langfristig wollen wir eine 3.x-Version veröffentlichen, aber das ist ein langwieriger Prozess, weil es eine große Menge an Veränderungen in der 3.x-Serie gab.
English:
We want to publish a version 3.x in the long run, but that is a drawn-out process, because there were a lot of changes in the 3.x series.
Jython – Python in der Java-Welt [Pirates of the JVM], JAXenter, 2017-04-12.