I don't believe Amiga will ever become mass market hardware again in any shape or form compared to Wintel PCs or even Macs. Hell look at how many mistakes Apple DON'T make and yet how little inroads they make into the lion's share of the home computer Wintel market or even persuading big companies to develop full price cutting edge games for Intel Macs. What chance has a dead company (Amiga Inc) and another one selling sticky labels for cheap tat running on pathetic Atom CPUs for rebadging purposes got today?
No company interested in becoming a third alternative has the cash to invest in the hardware side, and no company with the financial power (Google, IBM etc) is interested in doing anything via hardware.
I suppose technically it wouldn't be impossible to reverse engineer the basic design of the Xbox 360 motherboard with ATI Xenos GPU and PPC Xenon tri-core CPU with more memory to run a nice OS. Still it isn't going to happen despite the fact that rewriting OS4 for the 360 CPU would be quite trivial technically as it included the standard PPC instruction set already.
Not that anything like that will happen for us.