DP5 released! http://www.droid-life.com/2016/07/18/android-n-developer-preview-5-now-available/
this is a beta preview with only one purpose, to let users and developers find and report issues and share their experience. it is and has always been on purpose with such "real" beta, not just named like that for self protection LOL, that creator...
...I'm busy with college applications this weekend.
Something holding you back from s-off? Its fairly simple yo achieve.
And now I know for myself how bad I wanted a fully-functioning JB ROM; ~7hrs of frustration later, and I'm now S-OFF! *applauds self undeservedly*
Here's to hoping Google Now...
To confirm the post of @zelendel.
I did some experimental flashing with Cataclysm mod. After flashing the N-preview.
Flashed only the 'framework' files. And later the complete cata-mod without the boot.img.
Both experiments were not successful.