Honestly I can't imagine anyone is going to be focusing on her age anyway. Or why they would. Looks can be deceiving as evidenced by all the Eisenberg age complaints even though he's Cavill's age.
IDK, just something that popped up.
More "weird" in that either
1. Catwoman is just now showing up.
2. pre-established Selina still doing typical Catwoman stuff like 15 years later.
Thats kinda why im leaning more towards wanting full ally Catwoman or Kingpin Selina.
Im definitely hoping that Red Hood rumor is true, not only do we get a new villain but it allows WB to use Joker and in a more interesting way than a big bad again.
Also get flashbacks that pad this world out a bit, not to mention stuff like full on young Robin which likely won't get much screentime otherwise.