I think there's a pretty good chance we trade them both. Not this year of course, but if Moreno comes up and proves he's not out of place at the MLB level, I think we probably sell high on Jansen at the deadline or the off-season and keep the younger, more cost controlled Kirk.
Kirk and Moreno should be a fine combo for the next couple years and then if and when Moreno establishes himself as a bonafide starting catcher, we move off of Kirk when he's 25/26 before his body completely betrays him.