The Paradigm is named in #2. Sarah's death is confirmed in #3. The Hornet's first name is given in Irredeemable Special #1.
First trade-paperback collection credits Paul Azaceta with character design of The Plutonian.
Notes:
Waid writes about Irredeemable in "Tick... Tick... Tick..." column. Page also includes Boom! masthead, brief Q&A with Caped writers Moiselle & Lobis, and small repros of covers to upcoming releases.