Given that Debian policy is using now DocBook, and you mentioned that
being the main blocker. And that we are at the start of the release
cycle, it would now probably be a very good time to declare this
package obsolete, create bugs for packages still using it, and start
the process to try to remove it. Otherwise if this is not announced
explicitly, I'm afraid people will not we aware of the current
situation and the package will linger for a long time. What do you think?
The current list of packages Build-Depend'ing on it are: