In a video interview with KTVO that has been posted on You Tube, Matt Roloff says they've been filming more episodes (the entire Roloff family are currently on a trip -- 'Down Under') and the next episode should air in June that will "touch people's hearts", followed by a sequence of episodes that will air later this year that Matt says will be interesting and compelling for viewers.
According to Matt in public court documents in December 2011, the Roloffs contract was set to expire in April 2012, but were in talks about doing a few more "special" episodes.
Aside from Matt talking about when more episodes will air; just a really quick summary from Matt's interview:
Matt's message is that they represent all people that have a difference and if they can get people to accept a person that is 4'2" with dwarfism and see them as a real person going through the same things, then that will open their eyes to all people who are different from them.
Matt says that people who are "different" are too hyper-sensitive and shouldn't be offended if people say something wrong or a bad word out of ignorance. Matt states that ignorance is actually a good thing because it opens the door to educating someone and if you get upset and bitter because someone said a word you don't like, that will end any possible dialog.
Matt says they are still cranking out episodes, just at a slower pace. They have no regrets. They wouldn't trade it for anything. Matt says their biggest regret is that they aren't able to respond to everyone.