Zerohedge has an update.[1] So does NYT.[2] The loss rate is down a little, to $708 million per quarter. Uber claims to have $7.2 billion in cash. But that's not all investment capital; at least $1.15 billion of it is from debt. At their current burn rate, they have about two years of runway left before the investment capital runs out. So they can stretch things to mid-2019, if the investors are agreeable.
Or maybe they can find another sucker.
[1] http://www.zerohedge.com/news/2017-04-14/cash-burning-machin...
[2] https://www.nytimes.com/2017/05/31/technology/uber-limits-lo...