If SOU airport is in any really serious danger of filing for bankruptcy AND not being able to reopen under some kind of debt restructuring / bankruptcy process, then it's likely Govt cash will be found from somewhere - be that Eastleigh, Southampton, Hampshire or Westminster, along with a bit of cash perhaps from major employers in the area. SOU will still be a functioning airport in 5 years time; the question is which passenger services will remain and who will own the airport