I still say put Kenny Braverman in this role. With Death of Clark Kent having to be redefined because of so many differences now, there's every chance to say he's still alive. And since Metallo is back in a major way, Conduit as a villain becomes rather derivative (in fact I do believe Conduit was designed as a replacement for the Metallo concept which at the time was not being utilized). So reintroduce him as a man in prison but repentant, eventually gets loose and fights on the side of good now while still retaining his edge and a strained relationship with Superman.