Welcome back to TechCrunch Mobility — your central hub for news and insights on the future of transportation. To get this in your inbox, sign up here for free — just click TechCrunch Mobility ! This newsletter was wrapped and ready to go and then Travis Kalanick brought me back to 2016 by making an eyebrow-raising announcement. Uber’s co-founder and former CEO who resigned in 2017 after a string of controversies is back and building a robotics company called Atoms . And, wait for it, he is on the precipice of acquiring Pronto , the autonomous vehicle startup focused on industrial and mining sites that was created by his former Uber colleague, Anthony Levandowski . Kalanick revealed he is already the “largest investor” in Pronto. That is a lot to digest and the final sign that, yes, we really are back in 2016. For those who may not remember, 2016 was a hyped year for AVs.…