There's a new board coming around october-ish according to their presentation at OPNFV summit and their website. From what I can make out, it doesn't appear to be fully SBSA compliant, but it appears that it *should* work with very little modification. I'm not making any promises though until I have a chance to get hands-on with it.
If you're interested -> https://www.solid-run.com/product/armada-8040-networking-community-board/