Sadly we do not know if akame ga kill will get a season 2. However the prequel by Takahiro titled Akame ga kill! Zero has been written and the sequel Hinowa ga Crush! is being written as we speak. We do not know if these will become an anime as not many people know about them compared to the main series but we can hope! hopefully this answers your question
The anime follows a different canon than the manga. There isn't much content for another season. One could argue Hinowa could spawn an anime adaption, but I very much doubt that. The manga, as Acro says above, is doing poorly.