Winstar BT81x modules

[Rudolph]

I am always looking for EVE modules to include support for in my library and I just found these from Winstar:

WF43WTYBEDST0 - 4.3" IPS 480x272 resistive touch, BT816
WF43WTYBEDSG0 - 4.3" IPS 480x272 capactice touch, BT815
WF50FSYBGDST0 - 5.0" IPS 800x480 resistive touch, BT816
WF50FSYBGDSGA - 5.0" IPS 800x480 capacitive touch, BT815

These might be Arduino shields and these might come in different versions.
Like with a SD socket, Arduino pins soldered in or a flash-chip - but none of these options are in the datasheets I found.

There is a 20pin header (FFC connector not populated) that looks like Winstar started with the pinout from Riverdi,
but pins 9 to 16 are different.
There is no Audio Out, the IOs are different and there are CSCL, CSDA, CRST and CINT pins for the ILI2130 CTP.

I wonder if the CTP is even connected to the BT815.

I am curious, but I can not find a distributor I would buy these from.
And Winstar only offers a short-form datasheet on their website.

Has anyone played with these?