CDC's best guess was .26% with a range of .1 to .8%. New York study was .8% but the nursing home outbreak skews the death count higher (Please don't cite Stanford at me...it's been widely shown to be flawed). France was .7%. The Italy study released a few weeks ago was .65%. The Spain was the worst one at 1.1%. Given all that, and given the nursing home problem which has skewed the death count upward, my best guess is somewhere between .4%-.9%.
To put it in perspective, that means if you catch it you have a better than 99% chance of surviving. It is anywhere from 4x-9x deadlier than the flu. If you are a child, you have a better chance of surviving it than the flu. For the old, it gets much more risky around age 65 and then increases severely in risk with age. For everyone else, it's about on par for the flu (slightly less for the younger, slightly worse for the older up to 65).