Maybe we will see a post from the new owner of the materials, here or elsewhere.
Regardless, a community effort to develop a similar product would be neat. I'm proficient with PCB design and design for electromagnetic compatibility, though I don't know how to design the grayscale video circuit itself.
Relatedly, I was going to develop a faster 68030 accelerator board with a fast DDR2 cache of the entire main memory for the SE/30. Looking at the DiiMO card, an accelerator like that should actually be pretty easy, especially with a modern FPGA to implement the cache and glue logic. Hell, an entire 68030 running faster than was ever available could be done in an FPGA, but I couldn't find any free '030 soft cores, only 68000 cores. An SE accelerator using a 68000 soft core is also possible and definitely would be cheaper and smaller than with a hard 68030 and FPU. It could also be a lot faster than using a hard 68030 or even 68040. Even cooler would be the possibility of reprogramming the FPGA and adding another (digital) peripheral to the card, like some kind of a coprocessor mapped somewhere in memory. Aaaaaaaand it would be possible to max out the system RAM with such a card, even if the target Macintosh only has the minimum amount installed. (at least on the 030 systems, except for the IIfx)
So maybe a combo card could be created. It would be a shame to have grayscale but still only a 16 MHz '030! A 6- or 8- layer PCB with components mounted on each side would make it physically small, other than where large legacy stuff would have to be mounted, e.g. 68030 and 68882. Could be done in only 4 layers but it might end up to be too large to fit into a compact Mac, especially if we want another PDS on top to mount, for example, the ethernet card.
tl;dr: designing a reimplementation of the Xceed is beyond my skill set, but I can at least do the PCB for it. I'm also good with driver software but I don't know if I want to take that on. Nominally, I'm a programer, but software development is very time-consuming. Maybe the Xceed driver can be reused. A 68030 accelerator seems easy, though I would like to see at least a schematic for such a card. The cache is easy and the rest of the glue logic should be straightforward from the timing diagrams given in Motorola's '030 docs.