Speculating on Google's future product names is a bit like trying to capture lightning in a bottle, I'm afraid. From what I can tell, the product name does somewhat depend on the hardware manufacturer, but we will see.
The only two things I'd really like to see in the next product is LTE and 32 / 64GB storage. Not that Google should in any way, shape, or form rest on its laurels, but it doesn't have to iterate brand new hardware all that often. It's not like they have to worry every second about competition from Apple. They've passed up Apple and are continuing to accelerate based on the inherent natures of their products and business model. Right now, the only folks you see buying iOS-driven devices are:
1. Those going after a brand name;
2. Those who just flat out don't know any better;
3. Those who have ties to a certain specific app (or group of apps) that are iOS-exclusive.
To be fair, #3 mostly describes creative professionals and highly-specialized vertical markets like health and medicine. These obviously are very important business segments, and absolutely Google should pursue those app developers vigorously, but for #s 1 and 2, the best way to gain traction is use word of mouth and advertising that riffs off of one of Microsoft's latest ads, which shows price differences and a noticible featureset and freedom difference.