One point you dont seem keen to acknowledge. All Championship clubs make losses and their owners all offset those losses, without the fanfare. Its not just a Rovers thing. In fact, I have read that even in the Premier League, only West Ham made a profit last year, as their stadium is funded by the government. Football clubs make losses. Yet are all owned by people who offset them.
The chances of any new owners being unwilling to do that, knowing that they would have to is low and would be temporary as the club would be taken away from them. There are clearly people out there with the funds and willingness to buy Championship football clubs knowing that they are loss making. Why are you so skeptical that it would happen here?