Frasier

On top of all the negatives you mentioned, too much time has passed. Frasier was a spinoff from Cheers. A lot of the characters from Cheers made at least one appearance on Frasier over the years. But, Frasier has been off the air for nearly 20 years. Cheers for 30. The continuity is broken and basically means having to either A.) Introduce the character to a new audience who are not familiar with either Frasier and/or Cheers, or B.) Reintroduce the character to an audience who is and has high expectations given the quality of the old show. Kind of like you said, I do not envy the writers and I expect the reboot to be a flop. Hopefully I'm wrong.

These are great points I didn't think of until now. Frasier's best episodes revolved around the strong cast. Coming in 20 years later with a 99% new cast seems destined to not hold up well. The Crane Boy just doesn't have the same ring to it.

I get that time marches on, but at a certain point, will the story actually reflect that, or will the disappearance of everyone simply be waved away with a line of dialogue? You're right, the writers have an uphill battle on their hands.