Perhaps in the future Sarek. At the moment he's got a re-programmable chip. He's reverse engineering how the Amiga chips (Gary, Denise, Agnus, Paula) worked and writing them in HDL (hardware description language).
It might be possible in the future to re-create the Amiga in a single chip, at the same time, improve on several limitations (2mbyte chip RAM etc.)
Dennis isnt the only one working on them, but he is the first to release any results.