AFAIK PCTask relies heavily on the custom chipset, and not developed anymore, so making a port would be a pain, if even possible...
I spoke to Chris Hames about this a few years ago when the blizzards first came out.
PPC-PCTask 5 as it was going to be never materialised, However Chris did say that he began converting the code from 68K asm to C.
How far he got with it i dont know.
It would be a good foundation for an OS4 ppc version.
Be nice if the code was released into the public domain ?
Maybe Bernie should put his knowledge of emulation into an PC Emulator for OS4 instead.
Make him some $$$