There are speculations that "Rick and Morty" Season 3 is going to air later this year. It seems that the upcoming season is not airing soon. There are rumors that the series may premiere next year.
According to a report in Jobs & Hire, it already has been announced by Dan Harmon earlier this year that "Rick and Morty" Season 3 is to be aired in 2017. There has been no exact date of airing being reported then.
In the same report, it is indicated that "Rick and Morty" Season 3 is done with the scripts and may eventually be aired in December of this year. However, it seems that there won't be any airing for the series this year and is possible to have it in the coming year.
A report from Opp Trends indicates that the delay of "Rick and Morty" Season 3 is due to some modifications done on the content of the series. Some of the scenes from the series have been changed to cater to young viewers.
The animation parts also need to be modified based on the requirements from the Broadcast Standards and Practices. There sure is a delay for airing "Rick and Morty" Season 3 but it definitely will air soon. It's just that at this time, no exact date is being announced yet.
It already has been reported by Game N Guide that "Rick and Morty" Season 3 will have Mr. Meeseeks return to the animated series. There is no definite information yet of the speculation but if the character comes back, this will provide a different plot to the story in the animated series.
There are also reports that the series has been in controversy because of some violence in the contents. "Rick and Morty" Season 3 is likely to show a defined storyline because of some modifications done into the story and the animation.
The official announcement for an air date of the series is yet to be given. As of this time "Rick and Morty" Season 3 is rumored to air in 2017.