There were many guesses yesterday regarding what kind of changes would be rolled out onto the Android Market. The Android Market Team sent out a message to developers yesterday regarding what the changes would be, and it appears that the changes are mostly to how much and what kind of preview information can  be displayed in Android Market app entries.

Below is the message that was sent to developers, including our own Jeremiah McLeod:

Hello,

We're writing to inform you about some changes to Android Market that require your attention.

First, we have added support for a recent changes feature, which allows you to add notes about changes specific to the newest version of your application. You are able to submit these from the Developer Console, similar to descriptions. In the Market app, these notes will appear under the app description as "Recent changes."

Second, there is now a ‘draft upload’ capability for application updates. This feature enables you to edit your app listing and upload a new version without affecting the version live in Market. Your app listing edits will not change your live listing until you select “Publish.”

Finally, we are adding support for larger promotional graphics to showcase your application. In addition to the currently required app screenshot, you will be required to upload one “feature” graphic. Supported promotional assets will now include:
- A “feature” graphic, landscape aspect ratio, 1024 x 500 (required).
- A high-res icon, 512 x 512 (required).. The Android icon design guidelines located at http://developer.android.com/guide/practices/ui_guidelines/icon_design.html apply.
- 2 screen shots, 320w x 480h, 480w x 854h, or 480w x 800h, increasing to 8 screen shots in the future (1 required).
- A link for a promotional video hosted on YouTube (optional).

Thanks, and we look forward to continue working with you on Android Market.

Regards,
The Android Market Team

Whether or not these changes are the only changes that will be implemented into the Android Market during the down session is not yet clear, but I believe it would be a safe bet to assume so.

AndroidandMe comments that "it’s possible we might not see these new features till Google rolls out Android 2.3 in a few weeks, but they do have the ability to update the Market client separate from the OS so maybe some of these options like video previews will go live this week."

MobileCrunch adds that the large resolution pictures "likely signals the much-needed web-based version of the Android Market that was teased back at Google I/O."

That would be nice I guess, but AndroidPIT users already have their own web-based version of the Android Market.

Other Sources: AndroidandMe, MobileCrunch, Phandroid

Image from MobileCrunch