Waiting for over more then a year already on a new iMac line.
Current iMac is still a PowerPC G5 one from late 2006 with OS X 10.4
Still a stable system but losing all functionalities due out-of-support software, lack of plugins, it's getting veeeeeeeeery slow now + I have 2 vertical purple bright defect pixellines in the middle of my screen.
It's reduced to an iTunes music center in my home now...
Last year having explored lots of other operating systems alike Ubuntu, OpenSuse, Fedora & my applications (TomTom, extensive Garmin topo editing for bikeriding, photography, astronomy) but none found that suits my needs (besides Windooz)...
Waiting desperately for the new iMac line (but might eventually fall for Mac Mini or the windows boxes finally
)