Sekirei (セキレイ, lit. Wagtail) is a Japanese manga series by Sakurako Gokurakuin. The manga was serialized in Square Enix's seinenmagazine Young Gangan between December 2004 and August 2015. A sequel to the manga began serialization in the same magazine in May 2017. An anime adaptation produced by Seven Arcs and directed by Keizō Kusakawa aired in Japan between July and September 2008, and a second season aired between July and September 2010. Both seasons were licensed in North America by Funimation, until their license expired in 2017. The central character of the series is Minato Sahashi, a ronin who failed college examinations twice. His life changes, however, when he meets several girls with special powers called "Sekirei", and is dragged into a battle to decide the fate of the world.

The show has made 2 seasons, but what about the 3rd?

Because In the Final episode of Sekirei: Pure Engagement, Matsu kept something hidden called The Jinki. 

Jinki (神器, lit. "God instrument"),[9] are eight mysterious artifacts numbered from #1 to #8,[10] also found on the Sekirei spaceship. If all eight of them are gathered, it is possible that they can be used to terminate all of the Sekirei if the wielder desires.[11] Upon all Sekirei being winged, the MBI puts all Jinki in their possession as prizes for the matches of the Third Stage, and only the Ashikabi with a Jinki are allowed to keep participating in the Sekirei Fight by the end of the stage.

So there haven't been The 3rd and Final Stage of the Sekirei Plan yet.

Check out these links from Facebook I posted

https://m.facebook.com/groups/505162316270282?view=permalink&id=1789149677871533&ref=m_notif&notif_t=feedback_reaction_generic

https://m.facebook.com/groups/1259728807486372?view=permalink&id=1672784362847479&comment_id=1673200816139167&notif_t=group_comment&notif_id=1532050733305396&ref=m_notif

So What do you think?

You want to know what's next for Minato and his Sekireis?

Will the 3rd and Final Stage of the Sekirei Plan start soon?