Not Long

DC has a way of ruining all their good characters, and once they realize fans are pissed and sales go down or the net is full of people ranting about it, they'll fix it.

Nightwing as Batman(Batwing) is totally wrong.  Gotham will surely fall into worse disarray.

Damian?  He's trying to be too much like Jason was.

Tim?  He's better off as a Robin.

And Jason Todd.  My favorite.  They need to stop making him out to be some chump and take him back to being Red Hood.  The guy's been through enough.  Give him his dues and put him where fans liked him best.  Make him DC's Punisher type character.  He's not some crazed loser.