Anime Japan is updated PVs, staff announcements, staff changes, etc. It's basically showcasing a lot of information, which I guess you could compare to E3. A lot of this was indeed already announced, but there was also a lot of unannounced information.
Summer of this year is the release date. I'm guessing a month or two prior is when tickets will go on sale.
I guess. I was mainly posting this for people who weren't aware, but I watched the live stream to see the seiyuu's and staff changes.