With a software company like Cakewalk, a very large chunk of the value is in the top software developers on the team. If a sale isn't immediate, those developers have to move on to feed their families, and once they're gone, you have a big chunk of code without the team that were neck-deep in it. I would bet it would take years for a new bunch of devs to come up to speed with the code. That makes the code a perishable item, and if Sonar has not been sold by now, it's on life support at best. Very soon, if not already, it will be unsaleable.
The reality is that it's all over. Holding onto hope that it will be revived is just going to break your hearts. Keep using Sonar for as long as you can, or move onto a new DAW. Sonar is dead - long live the king.