In the Project-Blog Edmund Wong wrote a status report concerning progress for a new SeaMonkey Release. Short résumé: unfortunately Heracles and Sisyphos dodged, so he has to do the job. Although there still are some (known and probably still unknown, for example Bug 1305915 – compile bustage for 2.46) problems he estimates that we will get a new SeaMonkey Release 2.46 in near future.
For impatient users some SeaMonkey 2.46 test builds (unfortunately not for MAC, nobody here who can help with his private builds?) :