Renaming a street isn't done by a private business with a stated goal to make a profit, though.
Look, I get the point you're making, that Google has essentially infinite money and can and has done "nice" things with no immediate benefit for the company. But there are two things that make this different: 1) There is always a non-obvious benefit to the company somehow (free email with lots of storage, but it displays targeted ads based on the content of your email) 2) the benefit Google would get off of this is tiny compared to the enormous cost it would take to get TTI or similar institutes interested enough to test it, then get state DOTs on board, then FHWA, etc.
Clearview took literal years to get to the point where the Interim Approval was issued, and then it turned out to be not all that hot, so FHWA would probably draw on its experiences and require even more testing before the next big font got to that point in the process. Meanwhile, Google would be burning money on this project throughout that entire time (someone has to be promoting this font to the right people, and that dude probably wants a salary). It makes sense for a type foundry to do that since selling fonts licenses is their core business, and they would see a return on their investment from font sales (this is what motivated Terminal Design). But for a tech company which does not sell fonts as its core business to do it, and for free, just for branding reasons? That is career-suicide level insane. We're talking blowing tens of thousands of dollars on the off chance that Google will somehow make it up in profits because someone thinks it's nifty that the Android sat-nav app has the same font as signs. If they actually thought that would net them extra profit, they could do a FHWA Series implementation like Sammi's doing, or license Interstate, for cheaper.
I think we will definitely see another attempt at what Clearview was going after, but the chance that it will come from Google is vanishingly small. It's more likely that Terminal Design or a similar company interested in actually selling their font will attempt it.