So basically... they are about to be writing and still need to figure it out, but he's not unavailable...
So he confirms he's still writing the show with them. Sounds like he doesn't want to spoil when/how Dennis will come back. I wouldn't be surprised if he is missing from the first couple episodes and then comes back in some absurd way. I never assumed he would actually leave the show entirely and still can't believe how this has been such a big story since the finale.
I think people are worried for no reason and should stop asking the actor if his character is coming back lol
Yeah haha I just saw it on Glenn's Twitter :p I'll definitely have to check it out after The Good Place tonight