I'm already using the plugin in my game and it seems to work nicely in development!!
It will be great to have an update for monetization indeed, but currently I'm focusing in getting my game to work great in development. and then to work great in production.
I'm new to fb instant games (as we all are) and still reading facebook's help articles while developing.
One thing I've noticed today is that in order to continue with my game to public production I'll have to send them Apple developer team id (because the game will be publish in Apple devices). Does any of you have experience with that? Does it mean that I'll have to pay the anual 99$ fee to Apple just to get the game published?