The reality is that Mooney will likely never build another airplane. There aren't enough buyers at the price Mooney needs to make a profit. The price Mooney needs is more than you'd pay for a more-capable Cirrus.
Beech put the Baron and Bonanza lineup on ice.
Cessna hasn't made competitive high performance piston planes in 40 years. And then they tried, and choked, with the TTx challenger to Cirrus.
Piper put the Six/Saratoga/6X line on ice years ago, and now the Arrow and Seneca as well.
The market has changed, older designs are out of production, and the winner is Cirrus. They are the only one introducing new capabilities to the light aircraft market.
Mooney gave it one good, last go, with the last Acclaims. The large, dual door was a significant attempt to woo Cirrus customers. Let's face it, getting in and out of a Mooney was never easy, and now that pilots are bigger than ever, ease of entrance is a key factor. If that's a hassle, it doesn't matter how nice the interior is, or what cool gadgets are in the panel. Passengers want ease of use, creature comforts, connectivity, and safety if the pilot becomes incapacitated. Well, Cirrus gives them all of that. Big doors, big windows, satellite radio, phone, and texting. Air conditioning. A parachute, airbags, an envelope protection autopilot, and now, Auto Land. Push the button and land, and collect the pilot's life insurance policy payout. At a price point of $730k to $1.3 million. (SR20, SR22, to SR22T)
That is the bar to meet, or exceed, for new airplane sales.
The real challenge is keeping the Mooney Type Certificate alive to support the existing fleet. It really should be consolidated with as many legacy TC's as possible to lower total overhead costs. One manufacturing location making parts for a dozen or so legacy airplanes. Like Univair, but on steroids. The company should also make components for larger aerospace companies, like Mooney used to do. Making flight controls for F16's or ailerons for Boeing would be a good business that keeps the lights on.