Presently, floating aircraft carriers float on water, but if DARPA has its way, they'll float on air. Flying aircraft carriers seem like an idea that would take shape within a major motion picture, but the Distributed Airborne Capabilities project is very much a real initiative. With the surge in drone use, it's not terribly surprising that DARPA is looking to put even more weaponry in the air, preferably without an actual person having to be onboard to direct.
Interestingly, it appears that DARPA is accepting applications for information on the topic. In other words, defense companies can submit a proposal if they think that they can help bring this to fruition. Which means you've some work ahead of you, right?