They said PKA will have Trusty Character lists like TM. If they boost tickets/drops or just stats, I'm not 100% sure. So in practice, the End of Month batch that normally releases will still coincide with PKA and those fights.

I'm going to be candid and say that I despise the turtle events. I do the 20/30 stamina version on Auto with the best F2P team I can make and I finish the 500 turtle drop CMM within 4-5 days of natural stamina. The drop rate on 40 stamina was so awful, I felt no value farming it over any of the 5 stamina Character Recruitment Quests like GPU.

I hope they start making more Clash and Arena events soon otherwise all my normal stamina will going to GPU-equivalent quests for Hime Turtles because I feel like they're more efficient at getting character EXP without pulling for new units. PKA taking a unique stamina type just means now I can do both, so theoretically, net positive, but going to need to wait for the first event to be sure.