As stated at AmiWest 2010, they still have no interest in x86.
As a platform, I'd rather be stuck on the FPGAs than to have to support all the hardware that exists for x86 commodity PCs. The best option, however, is still "all of the above" if you can get drivers for it.
A large portion of the advances of AROS are from the Gallium drivers for NVidia graphics cards. The Radeon drivers all require LLVM and will follow when I get LLVM ported to AROS. (I've already taken the bounty.)
I think LLVM will make a much more palatable target than any one processor architecture will by itself, especially since almost all AROS software is written in C.
The AmigaOS 4.x may take a similar turn since the XMOS toolchain is based on LLVM also. Hyperion has also deprecated PPC Assembly language on OS 4 in favor of C and C++. It's just a matter of time until everybody makes the switch to LLVM and Clang. (Clang has a much more liberal license than GCC, after all.)