Hi
Curiously enough, Epson UK were still happy for me to have a 4880 for review ;-)
My suspicion is that it wont be until well into next year before we get a replacement available. Have a look at the 7900/9900 threads here to see that there is quite a difference in the basic printers between the 78/98 and 79/99 series.
The 'article' referred to is actually only a collection of snippets of info I've picked up - I'll not be able to do a proper comparison for a while yet :-(