Well, if I had to pick one event which really put the brakes to Eva-303, it was the LONDON OLYMPICS. I went from not watching television for the last 2-3 years to being a couch potato every night for 2 weeks.
When the flame went out and "NBC Fail"ed the closing ceremonies, I was in a daze. Didn't want Eva-303, I wanted more Olympics. I ended up finishing just the 2 chapters that were done before the games that whole year. 2012 was kind of a bust for EVA-303.
This plus the situation in the actual storyline has led to a very long time since I drew Asuka for the comic. But already one chapter has been released and I've drawn a couple of scenes for another. 2013 will be a productive year I predict.