Yes, if you dig into the posts on Amigaworld.net you can find a statement from Rigo (some kind of developer of AmigaOS, Simon Goodwin from Amiga Format if that rings a bell) that x86 AND Mac Mini is ruled out (this statement was made last week).
Rigo is Simon Archer.
Just did a search on Simon N Goodwin and it turns out that he's been working for Code Masters since 2003. I wasn't aware that he'd worked for Amiga Inc between 2000-2002.
I wonder if he'd do a port of Gold Mine for OS4.