A few thoughts, although it's probably too soon to be making guesses. Cakewalk unprofitable? Well, if it is that's Gibson's fault - they've been running it. However, given all the development that's been going into Sonar in recent times, they must have thought it was profitable enough for that expense.
I can easily see how Cakewalk wouldn't have suited the Gibson brand. Presumably, Gibson had a plan that never came to fruition. Gibson is on its last legs with huge debts. They would either keep Cakewalk as an asset or sell it to recoup capital. The announcement makes it sound like they are ditching it. The only reason a company would ever do that is through pride - afraid another company would make a success where they failed; it wouldn't look good to the shareholders.
Gibson may have approached possible buyers silently in the run-up to all this, but now it's gone public and become public knowledge many other potential buyers could come forward.
The announcement states that further development has stopped, but the website etc. will remain. The wording of the announcement is interesting;
1) "I am saddened to announce that we ceased
new product development".
2) "this decision was made in order to
align with the company’s acquisition strategy, focused on growth in the global
consumer electronics audio business."
3) "and
reduced overall operations this past Friday".
4) "A dedicated team has been established during this
transition period".
5) "Monthly updates to SONAR from Cakewalk will however cease
during this time".
6) "We will continue to post notifications to keep you informed with any
relevant developments".
While part of the message seemed like an emotional goodbye, it didn't actually state that directly that Cakewalk is no more. Two other things could be read into the message. They are still waiting for a buyer to come forward. Or the Cakewalk development team are being reallocated to the consumer electronics audio department. It doesn't seem likely that Gibson would just chuck an asset in the trash at this time. More likely that it's holding out for a good offer or rebranding for a new market.