Rugrats, Fairly Odd Parents and iCarly being rebooted for Paramount Plus
 

Rugrats id getting a total new reboot with 3d characters while Fairly Odd Parents and Dora the Explorer are getting live action remakes and iCarly is being revived, there will also be over 7k episodes of classic Nickleodeon shows including the full library of SpongeBob SquarePants which includes the movie and a new series

Also The Real World Reunited reboot.
The Challenge: All Stars
And some drag race All Star shows.

The US has CBS All Access which I guess is like our Britbox. This is being swallowed up by Paramount Plus.

Why?

None of them are especially unique, the studios could make their own shows which were similar.

Plus, they're all a bit juvenile for "nostalgia bait", it's not like Pokemon or something, I doubt any 20-30-somethings would come flocking to watch them...

We already have 3 live action movies with Drake Bell as Timmy Turner