Despite murmurings that the upcoming seasons of Grey's Anatomy and Castlecould be the shows' final runs, ABC President Paul Lee said Tuesday that he "would like to see [both shows] run for many, many years to come."

His statement came in the wake of the news that Castle star Stana Katic has renewed her contract for the upcoming eighth season after the show's down-to-the-wire renewal. Meanwhile, as Grey's Anatomy heads into Season 12, many fans have wondered whether the show can or should continue without original star Patrick Dempsey, who left the show last month.

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But Lee said Tuesday on a conference call with reporters that he's confident Shonda Rhimes has "great plans" for the show next season.

Lee also said the network plans to have breakout hit The Goldbergs be a part of its Wednesday night comedy lineup "for a long time to come."

In addition, Lee said that the rumored Marvel's Agents of S.H.I.E.L.D. spin-off may still happen. "There certainly is a possibility of spinning [some characters] off," Lee says. "[But] we thought the right thing now was to leave them on S.H.I.E.L.D." Like last year, Agent Carter will return midseason, between the fall and spring seasons of S.H.I.E.L.D.

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Of the new series The Muppets, which will air on Tuesdays at 8/7c, Lee said it will poke fun at mockumentary series like The Office, 30 Rock and ABC's own Modern Family. "This is not your grandmother's Muppets," Lee said. "It's a grown-up Muppets." Once The Muppets finishes its run, Fresh Off the Boat will take over its 8 p.m. time slot, and Dan Savage's The Real O'Neals, a sitcom about an Irish-American family told from the point of view of their gay teenage son, will air at 8:30 p.m.

Other highlights from Lee's conference call:

-The new Shonda Rhimes series The Catch will replace How to Get Away with Murder on Thursdays at 10 p.m., once Murder finishes its Season 2 run. Lee would not confirm an episode order for Murder.

-American Crime is the new American Horror Story. Its second installment, which will premiere midseason, will feature many of the same actors from Season 1 playing different roles. "It's going to be a total reset but some of the actors are going to come back ... and it promises to be every bit as groundbreaking as the first season," Lee says.

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-New series Quantico (Tuesdays, 10/9c) is "a great popcorn thrill ride of a show," which stars Priyanka Chopra as FBI Agent Alex Weaver, whom Lee describes as "a quintessential ABC heroine."

-Wicked City, which stars Ed Westwick and Erika Christensen as Bonnie-and-Clyde-esque serial killers, will air in Quantico's time slot during the midseason gap. "It's really unsettling and it's really seductive at the same time," Lee says. "It's sort of sex, drugs, rock and roll and murder on the Sunset Strip in the '80s."

-Galavant will air in Once Upon a Time's time slot (Sundays at 8 p.m.) during the gap between its fall and spring seasons.

-Lee describes the new Sunday drama Of Kings and Prophets, which chronicles the Biblical story of David and Saul, as "truly the original dynastic soap opera. ... This is not your parents' Sunday School Bible show."

Which of ABC's new and returning shows are you most excited about?