Maybe, Maybe not. I'm pretty confident that they will eventually release it though. They've delivered on the Mini & the Emac. The Powerbook version has been shown in public.
The G4 & G5 towers seem more of a challenge with all the configurations and graphic cards that came on these...
I haven't tried AROS in a while but, I didn't seem stable enough for everyday use last I tried it.
Maybe, but will the G5 be supported by MorphOS by then?
And a single core X86 may be the fastest new generation system available, but when will AROS be stable enough for reliable daily use?
Until either of those occur, the G4 Mac is the most powerful NG machine.