The hardfork date for for HF 17 has been changed!
From this GitHub pull request Bump hf17 time #891 approved and merged a short while ago, it's now March 14th, 2017 11:00:00 EDT.
Note that I am not a Steemit Inc employee, and this is subject to change.
Edit: There are now new release notes for the first release candidate at https://github.com/steemit/steem/releases. Git tag is v0.17.0rc1.
Excited?
bitcoiner!