DC tried putting out a whole new line of new characters, but all of them have been cancelled because not enough people were reading them. The main reason Naomi has gotten so popular is most likely attributed to Brian Micheal Bendis being attached to the project.
Sideways has potential to be his own character. I see a future in him. Especially if he joins the Teen Titans
Sideways was well-written and worked. Damage was Venditti making the most of a very limited premise.
And yes, Silencer was amazing and I'll miss it.