If it were a land plane, I could see maybe doing that... But the fact that it's a floatplane IMO makes it almost impossible that will ever happen.
Why? Well aside from the fact they don't have the floats, it's an entirely different danger-level to take off in a sea plane, let alone a restored/rebuilt/fabricated design that hasn't ever been tested. A choppy surface and you could lose all that work/money.
It was dangerous even back then to take off in one of those things. Heck, the prototype Ar196 had a hard wave and the engine mounts snapped off and the rest of the airframe caught fire from the leaking gas. It was lost (crew got out, though).
From a liability, cost-v-reward aspect, and several other aspects, I don't see it happening. Just my personal opinion, though.