Jboss webserver 3.1.5

Hello,

I am running jboss webserver 3.1.5 and using java SE8 (java 1.8).
In 2019 you need subscriptions for 1.8.
For java 11 (java 1.11) you dont need the subscriptions.
When will jboss webserver 3.1.5 support java 1.11?

Kind regards,
Jeremy