Hey if you believe something vague like that, I have a palace on Mars I want to sell you.
Depends on the show ultimately. And even with good schedules, it's rare that an entire show will be completed before it airs. The first few episodes of most BONES show probably don't require any noticeable corrections at all for home video release. The later episodes could run into issues anyway when things start to catch up on them. Eureka 7 is a good example where even with a solid schedule, they blew it with episode 26 which took months to complete. Since it was a 50 episode series, the quality started to suffer. The final few episodes of the show got a ton of corrections on DVD. They completely redrew several scenes in the final episode.
Looking at this year's slate... Noragami and Space Dandy seem to be shows which were completed before they went on air. Chaika and Captain Earth have been in production since last year, so they're probably pretty far along too. Soul Eater Not looks pretty unpolished for a BONES series, since they put the Noragami team on it right after they wrapped up that series.