The design of the Pixel 7a does not seem like it will contain many surprises. OnLeaks has a fresh render for Google's next mid-range phone, and it looks like a mini Pixel 7. Usually, these renders are based on CAD information passed out to accessory manufacturers, so the sizes and shapes are usually accurate, but things like the colors and materials are up for interpretation.
If rumors are true, this will be Google's fourth phone to keep the camera-bar design going. The Pixel 6 and 6a camera bar had a clear glass or plastic covering around the camera lenses, while the Pixel 7 switched to an opaque, solid aluminum camera bar. Google likes these phones to look the same, so it's a safe bet the Pixel 7a will also get a solid camera bar. Whether that's aluminum or some other material is still up for interpretation. The front is also predictable and looks just like the Pixel 6a, with a flat screen and what the report calls "thick bezels."
Elsewhere in the Pixel rumor mill, big upgrades are expected for the Pixel 7a. Android researcher Kuba Wojciechowski has been tracking the Pixel 7a (codenamed "Lynx" and "Pixel 22 Mid-range") via the Android codebase, which reveals additions like (slow) 5 W wireless charging and the same Samsung GN1 main camera as what's in the Pixel 7 and 7 Pro, along with a Sony IMX787 for the wide-angle sensor. The new sensors would be a big camera upgrade. Currently, the Pixel 6a's main camera is the venerable Sony IMX363, a sensor that Google has been using (with one minor revision) since the Pixel 2. A fresh set of sensors would make sense, given that the IMX363 is around six years old now.
You might ask, "Well, won't flagship cameras cannibalize the bigger Pixel sales?" and we'll say that Google has never seemed to care about that. The Pixel 6a has the same SoC as the Pixel 6 and really seems to strive to be a third flagship next to the Pixel 6 and 6 Pro. Running a similar camera loadout would fit that strategy. Cannibalization might matter for companies with big, established businesses, but Google might just want to grab at whatever sales it can get at this point.
Wojciechowski's code hunting also says the Pixel 7a will sport a 90 Hz, 1080p Samsung display, which would also be a huge improvement over the 60 Hz Pixel 6a. All of this at the 6a's current $449 price might sound like a lot, but the Pixel 7 recently shipped in India, and if Google wants to be competitive there, this still isn't good enough. In India, it's normal for phones in this price range to have 120 Hz displays and flagship specs. In the US, though, this phone at Pixel 6a prices would be a killer deal.