FileBot 4.7 includes a new binding {plex} which will give you the Plex Naming Standard path for all media types:
{plex}
FileBot Media Renamer => http://www.filebot.net/
FileBot {plex} binding => https://www.filebot.net/forums/viewtopic.php?f=5&t=4116
EDIT: use built-in {plex}
binding instead of long format expressions