When the new AM has been tested? When people are back from break? When everyone is damned good and ready?
All of these are perfectly valid reasons! And for the record, I'm not really demanding anything be done -- I know all of the FTB folks are volunteers.
FWIW though, AM has gone through two version updates, both just prior to a mod pack update for DW20 (DW20 v. 1.0.8 was released just after AM2 1.1.0, and DW20 v. 1.0.9 was released just after AM2 1.1.1b). Given that, I was just surprised that one of those updates didn't include a newer version of the mod.
That being said, Going from AM 1.0.2 to > 1.1.0 is kind of a big deal -- Mithion released a bit of a huge changelog for the new version, so I can also understand wanting to wait. Like I said, just kind of surprised that it wasn't in a previous update, and somewhat frustrated that I'm being gimped by the mod in it's current state (I've acquired one of these affinities with no way to view or understand at what level or how to get rid of it)..