Other than the Benizakura Arc movie they made, the last one released last year was called Yorozuya Forever I believe. It was after the anime got canned (for the millionth time) so it was a decent serious wrap up for the series.
It is a lot of slapstick but honestly I think that's what I like about it the most; never takes itself too serious, and even when it does it'll immediately twist it back to something ridiculous. I don't think they are doing any real order in the anime to the manga arcs but the current manga arc is one of the better ones, one of their few very serious no joking around ones. I hope they get around to animating it one day if the show stays around long enough.