I wish Commodore would have supported the A1000 for a few more years, maybe up until the release of the 3000.
Did commodore truly support anything?
They did issue kickstart 1.3 disks after the a1000 was no longer on sale, it didn't have enough memory to load anything later.
I suppose you could argue for a thin ecs agnus, I think ecs denise would be compatible anyway. Someone could do an fpga on a dip carrier, throw in 8mb of chip ram. But then maybe an amiga reloaded board in a1000 form factor would work too.