@AmigaNG,
Like when I was talking to him he really liked the 286 and 386 structure. He said if he knew those processors where going to be coming out, he would of loved to try them to see what they would do. Back when he chose the 68000 that was the chip of the day.
The 80386, maybe, but I very much doubt the 80286.
Partially because the 80286 had already been out for a few years when the Amiga was designed (it was introduced in 1982) and partly because it was a bit rubbish, certainly compared to the 68000.
The 80386 is possible, though - starting at 16MHz and having a protected mode which was actually
useful, I can see why he could have been interested in that one.
There was, of course, one catch. The 80386 was
incredibly expensive at the time, so it still would have been impractical to have actually used one in an Amiga.