As Elliot said on twitter it’ll be released on next version.
Heads up! The next version of ACF PRO contains multi-lingual support for options pages! WPML works out of the box + filters for 3rd party 🙂 — elliot condon (@elliotcondon) September 17, 2014
If you need it before, drop me an email or go get it here in my old fashioned website 😉
And don’t forget to drop me a line !
Take care