Would depend on a lot of factors, but once Yelich is gone (huge sigh of relief) Contreras could always be our normally scheduled DH, provided he was still hitting.
I'm not saying we should or should not extend him, I'm just saying that we wouldn't always have to rely on him being our catcher, at some point, they all decline physically and defensively.
The guy has earned an extension, but I don't see us doing that, it doesn't fit our typical MO.
Oh hell, I guess I am taking a side after all. I don't think it would be a good idea to extend him unless he really does take a team discount, and I think we all know how that will play out.