Google ventures invested $258M in Uber about a year ago, I'd say it's highly likely that if self-driving cars pan out, there'll be an Uber fleet of them.
Oh, there's not a chance. Google's already invested quite a bit in Uber. Their exit is an IPO, not another investment. Private investment for startups is like a game of hot potato. Investors want to toss the potato to whomever will pay more. The public market is the last person to throw it to, and the valuation of Uber necessitates it.