A studio decided to get out of production and put a majority of its projects into turnaround.
Currently nobody is moving forward with these projects (=concept) but they have just been put into turnaround for other studios to buy (with current starbonds still attached/signed to the projects) so the concept phase could just be temporary.
"demotion to Concept is a step toward delisting" = Currently nobody is moving forward with these projects (=concept)
"If they are in turnaround, would that not still be 'Developement?'" = Currently nobody is moving forward with these projects (=concept)
"If someone buys the project, it is still alive." = the concept phase could just be temporary.
"Usually, demotion to Concept is a step toward delisting and the StarBonds are detached." = they have just been put into turnaround for other studios to buy (with current starbonds still attached/signed to the projects)
"Is this a new trend" = one studio doing one thing one time... is not a trend