I think floppy emulators are a great first enabler, both for existing motherboards and perhaps the reloaded ones?
I would
not assume PC drives are easier to buy the next few years... a compatibility jumper would make the board a plug-in replacements for A1200, where it seems motherboard damage is relatively frequent, while floppy drives are available from Amigakit.
I think built in CF support is a good idea, and removes the need for Zorro support for the most part. Usually that's what it was for on A500, HDD interfaces. J
ust don't make us put the CF card inside a screwed shut case. (like the Lvd/Kipper board)
So for the "A500 aspect" of the design (running Good Old Games, and OCS demos), well... accelerated A500s were not common, a big reason for having one is the excellent (un-upgraded) compatibility, i.e. you want the base specs and need only that. So I see Zorro as "can definitely be eliminated".
For the "A1200 aspect" of the design, missing expansion slot will make the die-hard angry perhaps, but they already have the knowledge to build their rigs
And from the specs it looks like this will be a
speed demon, a real step in the modern direction with
really good value for money! So if it becomes this fast, compatible replacement, a *lot* of people will be super happy with it and not even look at a 68060 with measly normal DMA and Blitter and Chipmem speed...
I would assume that zero software will be changed to accommodate Amiga Reloaded, with the exception of any software you happen to already have and already have a programmer ready for I think it will work out...
I have no opinion about video output options except that black&white, well just
remove it and save a few cents Make it a test pin, nobody but you will use it Jens, you know that
Also not really bothered if the serial port goes out the window. Parallel port - well you'd need something to sample sounds with.
Speaking of that, I think would be a golden opportunity to
pre-mix the Paula channels for the excellent 3.5mm output (like WinUAE default) - everything will sound better and it would be a true problem-solver for musicians, and there are lots of them. It's an absolute drag to get the equipment to do it outside the Amiga, but inside only a couple op-amps are necessary. Even if it's just 3 pins to connect a separate jack to, it certainly would be wonderful to have this original design decision enhanced, and to have it all inside.