The problem is Bisharp evolve at like lv 50 something, and that it doesnt matter what gender a Pawniard is, it can still lead the group as a Bisharp... Theres no point in adding a third evo, The whole structure is just so perfect.... nerding out again sorry.... i really love This evo line
I can tell you love that evo line. I don't see evolving at lvl 52 being a problem. After it evolves, it can just be a trade evolution after that (most likely with a hold item). If you approach the evo line as you would chess, than the Bishop can't be the final (top) evolution. It may not happen this generation or gen 7, but some point down the line, this evo family will get an addition via a stage 2 evo and/or a branching evo.