The Novasom M9 is a new alternative to the Raspberry Pi that not only supports M.2 drives, but supports three display outputs. The board has 128 GB of flash storage too, along with Gigabit Ethernet and four USB connections.
https://www.notebookcheck.net/Novasom-M9-A-Raspberry-Pi-alternative-that-supports-M-2-drives-and-three-video-outputs.501808.0.html
I think we're way overdue a major new upgrade from Rockchip and users of the rk3399