MicrostockGroup

Here is the Rumor and News thread for the Canon 5D Mark III - let us know if you hear something.  I'll keep this first post updated with all the info.  There is also a good rumor page on the TogTech blog

Dec 6, 2011 Update
Pixel count is now said to be over 30MP, focus - something ala Canon 7D and fps staying where they are with the current 5D mark II

July 7, 2011 Update
No more real news about a new camera.  There are rumors about it coming out in 2012, or maybe still late in 2011.  I've read reports of both 24mp and 32mp ... I'm hoping for 32

February 17, 2011 Update
There are lots of rumors of 5D mark II's being sold out everywhere.  I can see that BHPhoto still has them in stock, and it looks like Amazon has a few in stock as well, so things aren't totally depleted yet.  There are also rumors of 'news' coming out that a 2011 release seems highly likely, maybe in March (I don't think so) or maybe later in the year like the last 5D release (my guess)

December 22, 2010 Update
Well here's an update with no real updates... lots of people are talking but nobody has any hard facts
.. but there is a lot of talk about a new form factor for Canon, with the 1Ds series being something different than a 35mm like we are used to.  If the 5D is stealing the 1Ds market, then perhaps the 5D will become the new 1Ds in a way and the 1Ds will become something bigger... Looking forward to 2011 to find out!

August 2, 2010 Update
It doesn't like the 5D Mark III is going to be released any time soon, probably not until late 2011.  If the release timing is similar to the 5D Mark II then it could be available for late 2011, like around Christmas.  It looks like we'll be stuck with the 5D Mark II for a little while longer, which isn't such a bad thing either.

July 7, 2010 Update
The latest rumor is that is will be released in 2011, no details on the specs yet though

March 5, 2010 Update
It looks like we will be waiting a while still - so while we do, here is all the canon threads.
http://www.microstockgroup.com/canon/

The last rumors suggest a release date of Fall 2010 or spring 2011 but before the 5D Mark III the 1Ds Mark IV will be released so we have a bit of waiting to go.  When the 1Ds Mark IV is released we will hopefully get an idea of the specs the 5D Mark III will have as previously the 5D has had very similar specs to the previous 1D camera.

I will keep this post updated with current links or news
5D Mark III search on BHPhoto
Canon 5D Mark III [Amazon Search]

you are two years to early

Wouldn't we see a 1Ds Mark IV first? And then maybe a year later a 5DIII with the same sensor? 

yeah, that is probably how it will work.  Whatever comes out on the 1DsmarkIV will give a good indication of what the next 5D will look like.  I am not expecting any 5D's for another year or so though.  Hopefully the 1Ds is announced in January like Talanis mentioned
http://www.canonrumors.com/2010/02/5d-mark-iii-cr1/

I'm not sure I will be upgrading for a few years even if something good does come out.  The 5DII pretty much covers all my needs.  I don't really need more than 20+ MP, and once they release the firmware update that allows 24P video, it will do everything I've ever wanted my cameras to do.   I think I'll probably focus on getting some of the higher end lenses the next couple of years.

I can't imagine what Canon could possibly offer at this point to persuade me to upgrade from my 5DII.  It's everything I want, not to mention need, in a camera

I read with some interest that engineers at Canon were really upset about the 5D MKII. They were concerned Canon was pursuing pixels over quality. My bet is the next generation of sensors will be no larger but mind blowing quality. My source in Canon in Japan says the IDs replacement will be the vehicle for this.

I'd just like to be able to shoot moire-free video. I have no idea whether or not that's technically feasible, but I'd definitely pay to upgrade if they could achieve that.

I'm going to wait for the 5d mk IV

Nope.  But you didn't mention anything that would tempt me to upgrade either.  Most of what you mentioned are frills have no use/need for, and the rest are related to video, which I don't currently shoot. 

If I should decide to shoot video I would rather get a dedicated video camera than struggle with a hybrid that tries to do too much and falls short.

But different strokes for different folks

Guys we are microstock forum, most of agencies are satisfied with 4mpix right now. Low light focusing? Common, is night photography so big on microstock? You should be using manual focus anyway :-) Movies? Do you need $3K camera for 20 sec clips? Get a Flip, it does HD :-)

Canon Rumors had a little post today about some rumored specs

28 megapixel
2 Stop Noise Improvement
63-segment metering
1920×1080 30/25/24 frame Video
RAW Video
CES Announcement

I'm very happy with mine, as I've never used a 1d/1ds Mkxx  I don't have a problem with the AF system except live view.  (I only really use live view when using my macro lens to accurately focus manually)

Improved frame rate would be on my wish list

Any higher pixel count would not really be much of an advantage to me.