Armbian showed a pictures of Orange Pi 3 Plus. Now, BananaPi released a pictures and info about BananaPi-W2. It is really powerful single-board computer. So, we can wait for two interesting a powerful single-board computers.
As I mentioned in title, it contains a lot of different interfaces.

The heart of board is Realtek RTD1296 processor, Quad-core ARM Cortex-A53 with Mali T820 MP3 GPU. More info about this processor, which contains Gbps ethernet, 2x SATA, 2x USB 3.0 you find here . The amount of RAM is 2GB and the type is DDR4.

The BananaPi-W2 contains these interfaces:
- PCIE 2.0 interface.PCEe 1.1&SDIO
- support 2 SATA interface
- MicroSD slot supports up to 256GB expansion
- 8G eMMC flash (option 16/32/64G)
- Mini DP
- 2 port 10/100/1000 Mb Ethernet port
- (1) USB 3.0 and (2) USB 2.0,otg port
- 1080P high-definition video playback
- HDMI In/Out
- TYPE C interface

WiFi module can be connected through PCIe, the same like 2G, 3G, 4G network for cellular.

Now are supported OS like Android 6.0, Debian 9, Raspbian and Ubuntu 16.04.

The price is 93 USD + 6.33 shipping (in my case) on aliexpress.
https://www.aliexpress.com/store/product/Banana-Pi-BPI-W2-smart-NAS-router-RTD1296-chip-design/302756_32862157238.html

https://bananapi.gitbooks.io/banana-pi-bpi-w2-with-realtec-rtd1296/content/