Please refer to KB66741 in the McAfee Knowledgebase, that one should always have up to date info. It is coming, no worries :-).
A rumour I heard was that 5500 engine is now only being deployed to consumer products, and that it will be skipped for Corporate products. A later engine due out this year will end up as the new corporate version...
The 5500 engine will be a consumer windows only release.
McAfee is planning a substantial update for the 5600 Engine, targeted for 1H2013. Rather than providing two Engine releases for VirusScan Enterprise in subsequent quarters, McAfee will instead focus on a single 5600 Engine release in 1H2013. This release will apply to all McAfee products that use the Anti-Malware Engine, including VirusScan Enterprise and Consumer products.
A formal communication will be sent customers shortly about the updated plans for 5500 and 5600 engines.
Product Manager, McAfee Labs
i understand that large enterprises need to validate every engine update and test it in their environment, but small enterprises would really need the performance improvments now rather than in 9 months. (and i now, mcafee will postpone the RTW date)
what about the incremental engine update feature introduced in the 5300 engine series (i remember engine 5301)
Improved reliability and overall performance improvements
DAT loading and updating improvement for better performance during incremental DAT updates
McAfee is a fine AV, but this why i had to switch on low-end machines (3ghz p4, 1gb ram)
The costs for releasing an incremental engine turned out to be on par with a full engine release. It's not a route we're inclined to take in the near future.
We've made a concentrated effort to reduce our dat size. From 130MB at the start of the year it's under a 100MB and we plan to reduce it further in the coming months. This dat size reduction does ease things a bit in the interim until we make the 5600 engine available.