DH & keg. Aging-NO!
I've aged a couple bottles of IPA/IIPAs and the results are beautiful in the glass but lacking in the nose. So much of an American IPAs character is the hop flavor/aroma. Anything done to diminish this has a negative impact on the brew. If aged for several months even in a fridge what you wind up with is a very bitter beer with subdued hop character.
"Perhaps wisdom for me is understanding how truely small I am, and that there is no smug self centered moment of clarity when there is so much more to learn" Anthony Bourdain