Just wanted to see if I understand properly how/when one can change the "Large icon" for their iOS app in iTunes Connect. Questions are in bold below.

To start, first the facts (as I gather) from version 6.6 of the iTC guide (March 2, 2011):

1. The Large Icon is a "locked" piece of version information

2. "You will only be permitted to edit Locked version information when your app is in an Editable state"

3. The "Editable" states are:

Prepare For Upload
Waiting For Upload
Waiting For Review
Waiting For Export Compliance
Upload Received
Rejected
Developer Rejected
Invalid Binary
Missing Screenshot

Am I missing anything up until this point?

If not, then am I correct to say that the only time I can change an app's Large Icon is when I update the application?

Here's a more specific use case:

1. My app is currently on sale, version 2.0

2. I have version 2.1 ready, and I want the update to coincide with a sale, so I also put a "SALE" banner on top of my large icon (what most devs are doing)

3. I have to upload this "SALE" Large Icon when I upload the binary. If I wait until it's been reviewed, it's too late, and I'll have developer-reject the binary so I can fix it. Is this correct?

4. Say I want the sale to last a week. So at the end of that week, I'll want to switch my Large Icon back to the pre-"SALE" version. Will I necessarily have to upload a new binary at that time?

(Also posted on the Developer Forums, but it's getting no love there...)