Currently to my understanding the plan is to do something futa related if the legend has a gender ratio that includes male or is labeled 100% male. So the means the Forces of Nature, Kubfu and Urshifu and the Loyal Three are the only ones I can guarantee. Chainsaw may make any mon futa if they so wished however since all other mons minus the few who have 100% Female are non gendered. This of course isn't a need for each chapter since the focus is still on breeding first and foremost so we'll see which mons are gonna be made futa outside the nebulous ruleset