Hi, this is a small advice.
I'm using succesfully WooCommerce with WPML, multilingual plugin, but in a website with Portoguese language it was not translating.
Noticing that in languages folder woocommerce-pt_BR .mo and .po files do exist, I copied them also in woocommerce-pt_PT and now it works.
While you wait a specific translation for Brazil, you should distribute them duplicated also.
Thank you very much for your amazing plugin.