the manufacturer has already said that there is no further development for old models, only for the AMLogic models such as Dreambox one, will come in the future something new, from the manufacturer's point of view, this is all ok, they have to look forward.
The company has also decided to offer nothing more for the opensource area, this is also ok, even if I do not quite understand the decision they earn not on the software but on selling devices, they could have created the audio interface for amlogic as an external lib with tpm protection, then many opensource images would now also be available for these amlogic models and the devices sold off would be even better.