Earlier quoted context omitted.
The camera makers would be wise to just implement an API over Bluetooth or adhoc WiFi to pair with phones/tablets/laptops and offload RAWs and JPEGs. Lightroom mobile, etc., could then have the images swiftly processed and uploaded, and could probably be implemented with minimal changes to the newest models of camera.
Canon and Nikon and I'm sure others already have a WiFi adapter you can plug into the SD card slot that does exactly this.
You're probably thinking of an EyeFi, which is a third party product. First party WiFi support is typically either baked into the body itself or a dongle you'd clip to the side of the camera or flash shoe.