I don't know if he's ever going to show up here, but should Sergei make his presence known on the network at any point, I'll let you know. Granted, if he ends up being anything like what he is in my memories, he's a little difficult to miss.

I think it may be for the best to not engage with him very much, should that happen, but it's difficult to say for now. I obviously can't discern the future.