I don't know how I missed this, but Massey has released 64-bit AAX versions of their plug-ins for ProTools 11! Huzzah! It comes with a fancy new Wizard installer thingy...
Installin' ma plugz
So far, it looks like the vt3 3-band EQ, ct5 compressor , L2007 limiter, and TapeHead saturator are the only ones to get the AAX treatment so far, with the others listed as "Coming Soon," but if you're a fan of the Massey plug-in suite and a ProTools 11 user, head on over to Massey's site and download the goodness!