Well, there is a sort of "poor-man's-batch-encode" using the open-source AutoHotKey program... it has it's limits and may require you to change the script to your needs, but check out one batch-encode script here:
http://www.homedvd.ca/contact/software/premiere_pro_batch_export/
This script is just to "save as dv-film" but you can change the script to export to adobe-media-encoder and use your last settings...
greetings,
ninetto