Old (relatively) shows that have received a second wind.
Anime
This stack is intended for (relatively) old cult or nostalgic anime that have received a second wind and new relevance in our time thanks to remakes, reboots, new seasons or spin-offs. For ease of reference, I will credit new inclusions in franchises with the original source, rather than the other way around.

TV, 2022,
13 eps
Me:-
Author:-
The long-awaited continuation of the anime adaptation of the cult shonen manga from the 00s after many years.

TV, 2022,
23 eps
Me:-
Author:8
Reboot of the anime adaptation of the cult shonen manga by Rumiko Takahashi, which is considered the prototype of the first harems

TV, 2019,
25 eps
Me:-
Author:8
Reboot of the anime adaptation of the cult shoujo manga

ONA, 2024,
5 eps
Me:-
Author:-
New season of the cult shoujo anime after many years

TV, 2020,
24 eps
Me:-
Author:-
A spin-off and formal sequel to the cult shonen anime of the 90s.

ONA, 2022,
13 eps
Me:-
Author:-
Reboot of the anime adaptation of the cult fantasy manga of the 90s

TV, 2021,
52 eps
Me:-
Author:8
Reboot of the anime adaptation of the cult shonen manga of the 00s.

TV, 2023,
24 eps
Me:-
Author:8
Reboot of the anime adaptation of the cult shonen manga of the 90s.

Movie, 2024,
1 ep
Me:-
Author:-
The long-awaited sequel to one of the most famous Gundam shows.

Movie, 2017,
1 ep
Me:-
Author:-
A reboot of the 00s cult mecha anime, changing some of the events of the story and placing the events in an alternative world.

TV, 2018,
22 eps
Me:-
Author:-
A sequel to the cult shoujo anime from 00s after many years

ONA, 2014,
26 eps
Me:-
Author:-
Reboot of the cult shoujo anime from the 90s.

OVA, 2012,
26 eps
Me:-
Author:-
A remake of the cult mecha anime from the 70s.

TV, 2023,
12 eps
Me:-
Author:8
A spin-off and formal sequel to the cult racing anime of the 90s.

TV, 2023,
12 eps
Me:-
Author:-
A new sequel to two famous PreCure anime.

-, -,
? eps
Me:-
Author:-
Alleged reboot of the anime adaptation of the cult manga of the 80s.

TV, 2024,
25 eps
Me:-
Author:8
Reboot of the anime adaptation of the cult LN of the 00s.

TV, 2009,
97 eps
Me:-
Author:-
Anniversary version of Dragon Ball Z with more modern animation, new editing and removed fillers.

TV, 2024,
12 eps
Me:-
Author:8
Reboot of the cult shonen anime from Rumiko Takahashi's manga.

TV, -,
? eps
Me:-
Author:-
The first new anime in the sci-fi mahou shoujo Nanoha franchise in years.

TV, 2025,
? eps
Me:-
Author:-
Reboot of cult paranormal comedy anime from the 90s

-, -,
? eps
Me:-
Author:-
A reboot of CLAMP's cult isekai anime, which was one of the first isekai in history.

Movie, 2019,
1 ep
Me:-
Author:8
Sequel to cult action comedy anime many years later after last TV series.

TV, 2026,
? eps
Me:-
Author:-
The revival of the iconic mahou shoujo franchise 28 years after the last show.

TV, 2025,
24 eps
Me:-
Author:-
A remake of the cult adaptation of the famous Western children's book.