@basdp I have copied your description above and I have reassigned this request to you. The description needs some work, can you help?
Different products have different goals, so we need to find a better answer. 
Looking at Overview | Bitwig, why should Bitwig invest in ARA2 support?
Does this answer mean that no, ARA2 support cannot be provided through a plugin?
Can you name some of the DAWs, please?