I know that PhotoPost integrates with threads, however, before you get too nuts, keep in mind that both products will be converted to the new, and I'm confident that they will probably integrate with the new since the both are PHP/MySQL.
Also, keep in mind, that the licenses for classic or threads will be migrated to the new product, as noted in the announcement found at
https://www.ubbcentral.com/ubb/ultimatebb.php/topic/9/57.html
