Why no more Go 13 Championship?

The last one completed on 2010-12-08 (Dec/12). The obligatory seven days are gone by. Rather 52 days. No championship?

League 1 has "Finish date:2010-12-08". League 4 still has 4 unfinished Groups, and League 5 has 2 unfinished groups.

I see. I thought the 'finish date' is for the whole Championship.

I guess it's the date that the Champion was crowned.

Not really... that is mostly before the group ends!

Well, the new champion is logically determined before the groups ends, but nowhere on the site officially declared ("crowned", colloquially) until the group is complete.