I would totally love to see Dean making jokes about Caspian's cannibalism habit, and Methos being all grumpy about having to get the other three killed again. Crossovers aside, I think we've got a better-tan-even chance of seeing some kind of Four Horsemen by the end of the series.

I'm still feeling out-of-sorts with the fandom, but I liked the show itself. As you say, it was grim, but I like that.