In the best case the outcome will be the lowest common denominator: something so abstract its of no use to anyone doing real work.
I'd be happy to be wrong, but I don't think I am.
We're quickly getting to the stage where we want these devices talking directly to printers. All of the companies involved want to make sure that as much as possible, printing companies can write one driver and have it work anywhere. Better still would be if no custom driver were needed.
There's also the current issues with upgrading existing devices to newer Android releases. If they can streamline the low-level stuff to get updates out quickly on Google's heels, it will add considerable value to their products.
So there's definitely a lot of motivation for them to clean up the embedded Linux ecosystem.