If they want to make some money from nostalgia they should make a short production run of *new* more suped up classics.
So a run of A4000D/T with included PCI busboard
or a run of A1200D/T with included PCI busboard or 060 accelerator
Even then its pretty difficult for them to make profit. Its not very viable for them to make a new run of A4000Ds
Really they should just give up on Amiga...the brand and the classics.