You do realize, don't you, that we scanner hobbyists have to determine what the new talkgroups are, right? They don't just magically get entered by a talkgroup fairy overnight while we sleep.
I'm figuring out what I can as they use them. Just tonight I heard a bit of chatter about directing a movie crew shooting a film on talkgroup 529, but I don't know what agency it was. It was carried on the Key West site.
My live online spreadsheet posted in the other thread linked above has my latest findings.