I've read that Quatro will be a DVD, I just don't know what it will contain. But live footage and the making of the albums would be pretty sweet :) I can't wait for Dos and Tré to come out!
First of all, Jason's inclusion is an ultimate win. I've been trying to convince my mother he is practically IN Green Day forever. And now, look at this! He's on a cover. So, hah-hah, my work is done. XD
And secondly, if a fourth album were on it's way, I would not be able to control/contain my tears. That is all.
Quatro is the DVD of the making of the Trilogy albums. For fans who pre-ordered the Ultimate Boxset (available from greenday.com since July) details were given of exactly what they would recieve in said boxset and one exclusive item was called Quatro and it is the "making of" DVD originally due to arrive with Dos! but now it seems it may be delayed as the band have been busy with touring etc. I am one fan who ordered the Ultimate Boxset simply to get Quatro!