The link: http://www.comicbookresources.com/?page=article&id=20086
And a summary courtesy of The ODI. I've added spoiler tags to the spoilerish stuff...
1) They confirm who will appear in this Volume: Micah (Yes!), Monica (Maybe), Barbara and West (No), and Adam (He turned into dust, no duh)
2) During the transport plane crash when Peter absorbs Tracy's powers, in was an accident and like Season 1 Peter is still "trying to get a handle on his powers"
3) They are done writing Volume 4 and they give the following tidbits as to what to expect: Bridge. Tunnel. 1961. Sylar’s Father.
4) They confirm that it is great to have BSG writer Mark Verheiden on staff
5) In regards to the Molly/Arthur scene that was cut earlier in the season, no we will not see any affects of that scene. Not a part of the "canon"
6) No plans to see the other "specials" that were on the transport plane and several will killed in the crash including the one that got sucked out.
7) Episode 3x17 - Will provide us with more details about Daphne
8) Someone asked about more clarification about Peter's abilities here is their answer: "This is all just an expansion of Peter’s powers to absorb them on at a time. It’s going to take some time for him to get used to them."
9) Yes Sylar can absorb Luke's power via empathic mimicry
10) They confirm that "The Rebellion" will track down Sylar to get his help against Nathan, which could lead to the future we saw in Season 1 with Sylar replacing Nathan.
11) More about Peter's ability: "Peter needed to reconnect with his empathy. Something he’s been sorely lacking since this adventure began. Maybe this is the universe telling him he needs to go back to his old ways. "
12) The working title for Episode 3x23 is 1961 and we will learn more about The Company's origins in this episode
13) Sylar used Bridget's ability of clairsentience in Episode 3x05 and will use it again in two weeks (I assume this means Episode 3x18)
14) We will learn more about the Hunter, Primatech and HRG in Episode 3x17
