He literally did exactly what Hoffman did, so he definitely should be tested. I would love to see Gordon put him in a trap, although I think Gordon served his purpose in Jigsaw's final requests so I don't see how they could bring him back.

We already have a new Jigsaw apprentice, the LAST thing I want to do is convolute the plot by adding more and more on or bringing Dr. Gordon back (ugh, please no).

Logan is obviously a bad guy, but for now I'd like it to just be him running the Jigsaw stuff. Especially since I like the actor and the character has potential. I wouldn't be opposed to him having another flashback trap or something potentially, though (assuming John still wants to test him or something)