That's an area i'd be quietly hopeful in. Assuming propulsion motors are available which are both:
a) powerful enough to defend against wind acting against such a huge object
b) responsive enough to change their thrust vector (power & direction) such
that the associated PID loop can operate within some reasonable set point
boundary
Then there are already open source hardware and software solutions available for this - i'm not proposing someone slaps a pixhawk 4 on a huge airship and gets a few mates over to help tune the PIDs in Ardupilot - i mean that the know-how is there. Translating that into a product that would be suitable for controlling such an aircraft would be do-able. Certification costs and expensive hardware suitable to run it all on are a different matter.
I guess this is a long way to say i don't think it'd be easy or cheap, but i don't think they'd have to make a break through innovation to make it possible.
I think this is fundamentally impossible, win loads are powerfull enough to ouright warp and destroy giant ground based cranes like they were tissue paper if the operator makes a mistake, like lifting oart of a stadium roof in high wind. there are scary videos all over youtube. Those things and made of hige steel girders.
This is going to be a light, fragile airframe with much bigger 'sail' in the form of the airship - its the size of a stadium.
Nothing short of a rocket engine will be able to keep it in place.
I guess this is a long way to say i don't think it'd be easy or cheap, but i don't think they'd have to make a break through innovation to make it possible.