I think a token-spewing theme is possible for Jade Lotus, but unlikely. I don't equate "cold, efficient assassins" with "SPAM THE BOARD WITH EVERY DUMB IDIOT YOU CAN FIND". If anything, that would be the Grimy Goons' theme (but we know what their theme is now). No, I think we'll get plenty of Stealth and "opportunistic Battlecry" minions. Battlecries that help to swing the board or gain extended value (which could be summoning tokens, true).
If we look at it from a gameplay perspective, both Druid and Shaman can build boards quickly with cheap, weak-ish minions. That's the only reason I say it's possible.
I think the only reason Goya is related to the Jade Lotus is she's a pandaren who runs an illegal Black Market and would have no problem hiring or working with assassins.