Go to the Adobe web site and look at the creative cloud and look at the different plans they offer. Part of it is what you want. Now migrate that same model to Poser and include content, render farms, different render engines, tools and somehow I don't think you will get what you want for 15 dollars a month. More likely it will be $50 or (a lot) more. For some it will be a lot cheaper as what they spend now, but for most it will be a lot more.