I came across this interesting new expansion board in development for the X68000. It is called the KemplerX and looks to be an all-in-one expansion:
(from the site: https://keplerx.ohnaka.jp/)
At the moment (as of January 11, 2023), the following functions are starting to work, albeit in a rough way.
Full memory implementation (automatically expands to 12M)
Mercury compatible PCM and compatible FM sound source
Built-in audio digital output (X68030 not supported)
MIDI IN/OUT
Built-in mt32-pi (requires Raspberry Pi)
In the future, we plan to add functions such as Ethernet, Wi-Fi, USB, BLE, and storage.
Wonder if it will be available to overseas shipment? I hope so! :-)
That card is a bit of a beast!
Hdmi out is also possible but not implemented.