Guys, if you want RTG graphics, you should want PCI or PCI-Express, NOT Zorro.
If you want Memory (ZorRAM), you want that via a more native addon, NOT Zorro. (I don't know how much is in FPGA Arcade directly)
If you want ethernet, is there not already a native addon planned that includes ethernet? But again, PCI/PCIe should be preferrable to Zorro.
Again for Deneb, is there not already USB port on a native FPGA Arcade addon? (I want to think it is on 68060 addon, along with ethernet) Why go Zorro compared to native or PCI?
Are or can be FPGA Arcade addons stackable?
The things I would think hardest to live without would be Video Toaster companions such as the Flyer board. But then we need a video slot for Toaster too. Does anyone really plan to use a toaster kit with the FPGA board?
I think it wold be an interesting project to make a Zorro slot for FPGA Arcade, as an educational exercise, but I don't expect it would be of much practical use. Though I won't be one to discourage anyone wishing to try. (I'm one wishing to try, if nothing more than to learn how to do such things)
I think it would be good to see people working on native addons for popular things like ethernet, USB, SCSI or whatever, rather than trying to adapt unweildy Zorro cards for normal use onto such a petite host.