Is There an Alpha Tree in the Casp 15?

There's a lot of research that can go into multiple confom ations that the different shapes of protins resides in. When they come together with other protins, they might adjust their structure. Will there be an alpha tree in the casp 15? Will it be alpha too, with some refinements? Yes. What is the ture that will be required, or what is the model that will be needed for taking on these other challenges? This is the matter of research, crag.