i thought i had read somewhere in these forums that there is no going back from evoq - ie there is no downgrading per se. you would have to migrate functionality and content. I know nothing about liquid content or if it is a module or if it is compatible with dnn platform. based upon what i have read - and i am neither an expert nor well informed - i would think that there is no compatibility.
i tried to install on platform a live chat module advertised for evoq, but found that it was incompatible.