Each new token pack contains 22-50 new top-down tokens with a certain theme. There are steampunk, demons, vietnam soldiers, ratmen, elementals and heroic characters that can be used as NPCs or PC characters.
Elementals, Heroic 7 and Heroic 8 also have some great tokens that you can use in place of the tokens found in Princes of the Apocalypse -- for those people who prefer top-down style tokens.
http://store.steampowered.com/app/389917/
And the full list of them:
http://store.steampowered.com/search/?snr=1_5_dlc__12&term=top-down#term=top-down%20tokens&sort_by=_ASC&page=1