Yes,one can always dream.
Unfortunately, when too few share the same dream, it can be quite expensive!
Raptors Engineering used a crowd funding to launch their Talos line of products in 2016-2017 ( https://www.crowdsupply.com/raptor-computing-systems/talos-secure-workstation ). It barely reached 15% of its goal with only 495 pledges.
It is formidable that they managed to keep going and are now able to design and market a second iteration.
Interestingly, there is a project for a PowerPC notebook which seems to be progressing well having raised sufficient funding for the developing the schematics - a 12,600€ scope of work ( https://www.powerpc-notebook.org/en/ ).
I don’t know how many developers have experience with the PowerPC platform. Nevertheless, it could be exciting if, one day, one of these systems gets loaned to Haiku for putting together a PowerPC variant of Haiku.