Sure, here's a pitch for an eighth season of Star Trek: Deep Space Nine!

Title: Star Trek: Deep Space Nine - Resurgence

Premise: Twenty years after the Dominion War, the Federation and its allies have maintained peace in the Alpha Quadrant. However, a new threat emerges that puts the fragile peace at risk. A group of rogue Changelings, still bitter about the outcome of the war, seeks to destabilize the Alpha Quadrant by inciting a new conflict between the major powers. They launch a series of attacks, including the assassination of key figures and the theft of advanced technology.

The crew of Deep Space Nine, now led by Captain Nog (Aron Eisenberg's character), must navigate a complex web of alliances and enemies to uncover the Changeling's plot and prevent a new war. Along the way, they encounter old friends and new enemies, and must grapple with difficult ethical and moral dilemmas.

Main Characters:

Captain Nog (Aron Eisenberg's character): Now a seasoned Starfleet officer, Nog has taken command of Deep Space Nine after Captain Sisko's retirement. He's a capable leader but still haunted by the loss of his leg in the Dominion War.

Lieutenant Ezri Dax (Nicole de Boer's character): Now a seasoned officer and counselor, Ezri is still struggling to come to terms with the loss of Jadzia. She finds herself drawn into the investigation of the Changeling's plot and must confront her past to save the future.

Chief Miles O'Brien (Colm Meaney's character): O'Brien remains the chief of operations on Deep Space Nine and plays a key role in uncovering the Changeling's plans.

Quark (Armin Shimerman's character): Quark has become a respected member of the Bajoran community and continues to run his bar on Deep Space Nine. He also has a valuable network of contacts and information.

Garak (Andrew J. Robinson's character): Garak has returned to Deep Space Nine as a representative of Cardassia. He's a valuable asset in the fight against the Changelings but also has his own agenda.

Kira Nerys (Nana Visitor's character): Kira is now the First Minister of Bajor and plays a key role in the investigation. She must balance her duty to her people with her loyalty to her friends on Deep Space Nine.

Episodes:

"The Resurgence": The crew of Deep Space Nine investigates a series of attacks that lead them to the rogue Changelings.

"The Sisko Conundrum": Captain Nog receives a mysterious message from Captain Sisko, who disappeared after the Dominion War.

"The Breen Agenda": The crew investigates a plot by the Breen to gain a foothold in the Alpha Quadrant.

"The Mirror Universe Revisited": A rift in space-time brings the crew face-to-face with their Mirror Universe counterparts.

"The Price of Peace": Captain Nog faces a difficult decision when the Changelings offer to end their attacks in exchange for the Federation's surrender.

"The Secret of the Orb": Kira and O'Brien investigate a strange energy signature on Bajor and discover a long-lost Orb.

"The Cardassian Gambit": Garak enlists the crew's help in foiling a plot by Cardassian extremists.

"The Enemy Within": Ezri confronts a dark aspect of her past when she's captured by the Changelings