I'm trying to make a list of things that have been dropped entirely, either through being explicitly said to have been written out, or though consistent non use and ignorance. Ore 13 - was said to be gone at around the start of AHM by Mcarthy or someone else (as a part of the soft reboot). Jimmy Pink - not mentioned at all in the Continuum book, not or mentioned since the one panel he was in at the end of Maximum Dinobots The Machination - now every human organisation that has some kind of dealing with the Transformers is being called Skywatch. Holomatter Avatars - last seen during Devastation, completely unused since then (correct me if I'm wrong). That whole Avengers... thing - although the less we say about that the better. Anything else?