Responses
She has both harems. A bi harem. That seems like progress in the right direction to me. Plus, it was done realistically and she could almost pick any one of them and the fandom wouldn't complain.
If she were to go girl, I would actually have her go with Mary but I can't be upset with her other options. The best ending with this one would be the vague "happily ever after" where we can assume she's happy with all of them in whatever capacity we want. That's what I thought we were ending with until this new arch showed up.
katarina: wow maria is so cute, i would totally wife her
katarina: no really, i was about to propose to maria
katarina: *goes badump at a girl smiling*
if this doesnt end with katarina married to maria or another girl what the hell is the point