There will also be a Telepathy transition, but the Telepathy team should know better
Empathy shouldn't be a problem for transitions as far as I can see. Some libraries with questionable ABIs (libempathy and libempathy-gtk) have been removed, but nothing in testing seems to depend on them anyway, so I think Empathy can be treated like a leaf package?
I'm not aware of any transitions that need to happen within Telepathy itself. The libraries (telepathy-glib, telepathy-farsight) are up to date in testing, and we don't plan to break their ABIs; Farsight/libnice appear to differ by one binNMU, so I assume they'll go in as part of some other transition (probably related to gupnp).
Regards,
S