Speculation based on recent Gmail rumors and previous press photos used by the company to promote several Nexus devices seems to indicate that Android 4.3 and/or a new Nexus device may arrive soon.

A reddit user posted a series of interesting images (available below) that show press images for almost all of Google’s Nexus devices revealing the connection of those photos with the Android version they were launched with.

Iamnotateenagethug ended his or her walk down Nexus memory lane with that leaked Gmail image that shows the new interface for the mobile app that’s reportedly launching on Wednesday. That image, despite being plagued with several inconsistencies, seems to reveal that Android 4.3 and/or a new Nexus device could be launched in the near future. The new Nexus 7 and the white Nexus 4 are two devices expected to be unveiled soon.

Sure, this is just speculation for now, but here’s what you’ll see in the images below (check out the time shown on the handsets and tablets):

• Nexus S – launched with Android 2.3.0 Gingerbread – time shows 2:30
• Galaxy Nexus – launched with Android 4.0.0 Ice Cream Sandwich – time shows 4:00
• Nexus 7 – launched with Android 4.1.0 Jelly Bean – time shows 4:10
• Nexus 4 – launched with Android 4.2.0 Jelly Bean – time shows 4:20
• Nexus 10 – launched with 4.2.0 – time shows 4:20
• Rumored Gmail screenshot – time shows 4:30

Considering that Google is known to hide various Easter Eggs in its products, we may be looking at a pattern here that hasn’t been noticed before. After all, the tech media always tries to establish correlations between the time shown on new mobile devices and their announcement and/or launch.

Nexus S with Android 2.3.0 Gingerbread. Time shown 2:30.

Galaxy Nexus with Android 4.0.0 Ice Cream Sandwich. Time shown: 4:00.

Nexus 7 with Android 4.1.0 Jelly Bean. Time shown: 4:10.

Nexus 4 with Android 4.2.0 Jelly Bean. Time shown: 4:20.

Nexus 10 with Android 4.2.0 Jelly Bean. Time shown: 4:20.

Sure, the HTC Nexus One, which was launched with Android 2.1 Eclair on board is not part of the series of images in the gallery, but that may be simply because Google may have started only later to connect the time in the image with the Android version installed on the device at launch.

Unconfirmed Gmail app UI update. Time shown 4:30. | Image credit: Android Police.

We’ll also point out that the Gmail image is yet to be confirmed by Google, so we’ll just have to wait for more official details. But, at the same time, we can’t ignore that particular pattern spotted in press images.