Any Chance of a updates iMac this year ?

We don't know for sure, but it's very likely they will announce an updated iMac in October. I'd wait if I was you.

 

Space Grey would look amazing!

I know it's almost impossible, but I'm crossing my fingers for the new iMac to be announced not until October but in the Wednesday Keynote.

 

I'd like to see it with a larger SSD as an option as well! How about 2 TB? Is that impossible?

 

Yes. The new iMac would be exactly like the current one except that it would come in a new color.

--- Post Merged, Sep 5, 2016 ---

You can take put a 4TB SSD in your iMac if you want (assuming that you can afford it).

 

Is it possible that Apple will announce the new iMacs on the iPhone event in 9/7 ?
How early was the October '15 model announced before it got released after the '14 one? Was it late September or early October?

 

If you look at previous releases of the iMac, most of them were made with less than a year apart (other than 2011, when the time was HUGE, thus making the average larger). So a September release wouldn't be so far fetched in terms of the past releases, but I don't know, I just don't see that happening.

 

It's not impossible, but highly unlikely. The September event has been about mobile devices for quite some time now. I believe the new Mac Pro was announced at the September event, but not released for several months later.

 

I've seen a few 4TB SSDs for sale online, but I've never seen anything about them being compatible with iMac systems. I'd LOVE to get a 4TB SSD (or even a 2 TB SSD, since the 4TB is probably outside of my price range), but I'd worry about 3 things with respect to installing such a device in a brand new iMac:
1. Is there such a device known to be fully compatible with the iMac?
2. If I bought one of these online, would it be easy enough for a mere mortal to open up the iMac and install it?
3. If I did install it myself, would I be voiding my warranty immediately upon opening up my iMac?

Please point me in the right direction to get a larger internal SSD in my iMac (I really want that speed when reading/writing/editing photo and video files, and when accessing my iMac from Apple TVs on my home network), but please help me make sure I don't void my AppleCare Warranty and I don't destroy my brand new iMac!!

 

Sure. Why not?

Well, I guess that depends on you. I've done it and I don't think it was that difficult.

I am not sure about other counties, but in the US, this does not void the warranty. (Magnuson-Moss Warranty Act)

Absolutely.

Watch these videos:



Read instruction:
https://www.ifixit.com/Guide/iMac+Intel+27-Inch+Retina+5K+Display+Hard+Drive+Replacement/30522

Upgrade kit:
https://eshop.macsales.com/item/OWC/DIYIMACHDD12/
Note that you need to install the In-line Digital Thermal Sensor Cable to control the fan speed.

SSD mounting kit:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817997037

Things you might also need:
iMac Opening Wheel:
https://www.ifixit.com/Store/Tools/iMac-Opening-Wheel/IF145-219-4
Plastic Cards:
https://www.ifixit.com/Tools/Plastic-Cards/IF145-101
Spudger:
https://www.ifixit.com/Tools/Spudger/IF145-002-2

 

You ought to add a 4th point - "Will I notice the difference on my Apple TV on the home network?" - to which the answer is "probably not"