Do you want Tim Drake to be Robin again?

[Bat-Meal]

Tim should be killed of and erased.

Harsh. Tim was Robin in the Arkham games, so he does get used outside of comics.

The Bad Blood animated film made them childhood friends (and Dick joked about flirting with her when they were kids before he knew better).

Yep, and in the Arrowverse version she was 13 when Batman was already known and active - though arguably they just made Bruce older than in the comics instead depending on how you want to look at it.
Oh, looks like she probably will get made younger again next reboot (not sure what that does with the DADT backstory, but it was removed in the Bad Blood version).