There are already important signals here.
1. Your login is tied to your google account. Want to use the computer in any real capacity? Google account.
2. They think bringing back multi tasking from the 90s is important.
3. People will want to control their computer views.
4. They are making a new kernel.
5. They believe in the capabilities based security model.
6. They believe in micro kernels.
7. They don't have any NEW ideas yet (otherwise we would see them in early stages). Maybe they will come up with something, it's research right?