They're almost guaranteed not to include the rumoured (yet again)
Retina displays though.
From MacRumors.com ...
Apple Reportedly Launching Updated iMacs
with Faster Processors Next Week
Apple is planning to update its iMac line next week
with faster processors and lower prices, according
to a new report from MacGeneration. Citing the same
sources that correctly predicted the MacBook Air
refresh this past April, the website also notes
that Apple may also include Thunderbolt 2 ports on
the new iMacs and will launch them later in the
week instead of the usual Tuesday release day as
done for other Apple products.
Like the MacBook Air refresh, Apple may be planning
to increase the processor speed of at least some
configurations by 100 MHz by using a number of
recently launched processors, including the 3.3 GHZ
i5-4690, the 3.5 GHz i5-4690, and 3.6 GHz i7-4790
for the 27-inch model as well as the 3.0 GHz
i5-4590S and 3.2 GHz i5-4790S for the 21.5-inch
model. It is also possible that Apple will cut the
price of the standard iMac configurations to go
along with these minor spec bumps.
KGI Securities analyst Ming-Chi Kuo predicted last
year and earlier this year that Apple would be
launching a lower-cost iMac in the near future to
address growth in foreign markets.
Meanwhile, recent evidence in the OS X Yosemite
developer preview has also indicated that Apple is
gearing up to launch Retina Display-equipped iMacs
in the near future. It is possible that Apple may
then initially move to split the iMac lineup,
selling the Retina models at higher price points
alongside cheaper non-Retina models. A lower price
point for the non-Retina models may also help
address growth in critical foreign markets such as