elementary OS Isis - Quick Preview

Avi Romanoff, member of the elementary team posted a video of the next iteration of the OS.
Named Isis, it simply looks gorgeous.
It was initially posted in Google+ in elementaryOS' community.
The thing we all want to know though is when will it be available. Romanoff gave this answer:

We plan on releasing a public beta and ISOs in the near future, though we don't have an exact date to share right now. We'll definitely let everyone know when we do -- stay tuned :)

Some of the features shown in the video:

1. The boot speed(approximately 10 seconds)
2. The new lock screen
3. The new Wingpanel, it can change opacity according to the background, pretty cool.
4. Some new animations.
5. New icons, and toggle switches.
6. The new Header Bar

The video is approximately 4 minutes long, check it out down here: