[NorthMountain]

I seem to recall they retired the last Aegis cruiser a few months ago.

I think you are confused. The AEGIS system is very much alive aboard the USN "Ticonderoga" class cruisers and "Arleigh Burke" class destroyers, as well as aboard destroyers of several allied navies.

[pfflier]

Found the old headline on this blog site:

http://navy-matters.blogspot.com/2016/02/navy-again-trying-to-retire-aegis.html

I guess they tried and didn't do it.