Personally speaking, I really don't want Alex or Gert to come back to life. That said, I thought Alex was an interesting character and he could have been a very neat villain. While he totally deserved the death he got, sometimes I wonder if it cost the Runners an Arch-Enemy, something I have to admit that haven't had since The Pride died.
And, er. Well.
Alex wouldn't deserve it AT ALL but I have to admit I am a big sucker for redemption stories. In the right hands, that could be interesting too.