When the devs will finish it, there is branch on github with php7 support, but i dont think it can be used, its still wip.
To be exactly i mean zephir, when it will be working on php7, then phalcojn will support php7 as well.
Actually there are init support for php7 in zephir 0.8.0
But i guess phalcon will be available after php7 will be officially released.