@Steve Ebersole, @Todd Richmond, @Michał Kapłon

As a possible workaround I have tried to implement an adapter of Hibernate 4 NamingStrategy for Hibernate 5. But I encounter some problems. Looks like, Hibernate 5 doesn't have a full support of ImplicitNamingStrategy (or I have missed something).

You can take a look on my efforts, if you are interested: