Regarding:

1. http://lists.jboss.org/pipermail/hibernate-dev/2016-December/015666.html
2. http://lists.jboss.org/pipermail/hibernate-dev/2017-January/015667.html

We agreed to dropping support for Session#createFilter in 6.0.

The next step would be filtering, etc based on Java 8 Streams in some 6.x. To be clear this is intended as an interpretation of the Stream operations into SQM/SQL query to resolve the results.