I'd say possibly.
Initially I didn't think we would be seeing the Intel PowerMac until MWSF 2007, due to the Intel timeline surrounding Conroe/Woodcrest. Now that they appear to be ~6 months ahead (appear to be for now that is

) I have faith that Jobs's promise of "all machines being Intel by the end of 2006" will hold.
Ah, but does that include the eMac?
Still though, I do not realistically see an Intel PowerMac until late in the fall, so the question would be, will Apple go an entire year without touching its Power machine? I say doubtful. Sure, they're not going to release something mind-blowing and have another major update to the line - after all, the PPC is the past, Intel is the future - no need to shine the spotlight on PPC. That being said, they will probably need to refresh the line in some manner, so I would say look for a slight speed bump to the bottom 2 machines and/or a price drop across the line, along with refreshed video cards, etc. But nothing more. After all, Pro users want the latest and greatest, and are not going to shell out a ton of money for a machine they know is going to get replaced by new Intel technology only 6 months later. Then of course there is the whole compatibility issue for Pro apps.
And the reason I say they won't touch the quad is, well, it's pretty frickin' powerful. To make themselves look good, Apple will need to release an Intel PowerMac which can compete with that, so they wouldn't want to make it even faster.

I have every confidence that the Conroe and Woodcrest chipsets will be up to the task.
Speaking of the quad though, perhaps that will indeed by Apple's swan song for the G5 PowerMac - send the line out with a bang. Who knows. All I know is I think Apple needs to do
something to the line before October/November rolls around when the Intel PowerMacs will finally be out. And if that's only a price drop, so be it.
Then again I could be wrong - it
has actually hapened in the past, believe it or not.
