The minimig or some FPGA on a chip is the closest thing to emerge in a Amiga Consumer Market.
Amiga or some developer in the community should market a Kit called Build-Your-Own-Amiga, just like Lego NXT that you can build a A1000, A500, A500+, A600, A2000, CD32, A3000, A4000 from sold-separately parts or buy a complete kit, but you must assemble it. All should come with an SD Card as standard and modern off the shelf PC components.
Plus, a Wifi component to connect to a modern BBS.
And, Morph OS, OS 4 compatible and can connect to Standard RCA. Open Source components.
Amiga Forever Compatible with ROMS. The Games and OS can just be used interchangably with UAE and connect via Amiga Explorer as well.
I can see $199 for a Entry Geek Kit (Basic A500),
$299 for Premium Geek Kit (A500-A4000)
But both versions can be upgraded to your specs, $199 is much easier and for the casual hobbyist.
Who ever invents this should also sell the extra addons at Radioshack, Best Buy, Frys, Circuit City, and other small electronics.
We all have to dream.