There are others who can explain the intricacies of JAH / JT much better than I. Suffice it to say that JAH has NO AUTHORITY to 'sell off JT as an 'entity'.
It is, and remains an AIRPORT, owned by the Commonwealth, and leased out by the Commonwealth to JAH to operate - as an airport.
The sub-leasing of the surrounding real estate is just that - a sub-leasing.
Soon it will be an airport in the middle of an industrial estate - but an airport never-the-less, and still owned by the Commonwealth.
Thanks 'CFI', et al, sometimes its like swatting flies......
Cheers