I hope their next album sounds more like +44 than A&A. I thought +44's album sounded very close to what Blink would've been like if they'd recorded another album after their last, self-titled one in 2003. I am very much looking forward to hearing new material though.
For mine, the bands' low point came with 'Take off Your Pants and Jacket' in 2001, the album although fairly good musically, lyrically seemed to be based on the assumption that everyone listening was 16 and in an on-again-off-again relationship with some chick from Highschool. It was about that time I started getting more into 'Cheshire Cat' no coincidence there. However, come 2003 and I loved that last album of theirs. It was much darker, moodier and more mature. 'All of this' with Rob Smith singing the vocals remains one of my all-time favorite tracks. It's such a dark, moody, beautiful sounding song, especially with Rob's vocals.
I'm hoping their next album will be basically where they left off last time, with some of the +44 influence to go with it. Do that, and I can see them producing an album that will be an eargasm to listen to.