As it stands now, they're moirails. Because I can't not ship these two somehow, they're too cute not to. But they don't need each other as matesprits any more. Latula and Porrim actually have a steady fling going on, and Mituna has Cronus and Kankri wrapped around his little fingers.
To me this also explains why Kankri is so protective of Mituna and so obsessed with Latula. Kankri can't get over thinking of Mituna as pan-damaged, and the fact that Mituna's also trans means Kankri thinks of him as a delicate flower who's unable to fend for himself. In 2x2 Mituna is healed as part of the +1 of best-ending post-game, which means he's just generally an obnoxious asshole, a manipulative little shit, and inappropriately sexual at the best of times. Kankri thinks he's protecting Mituna from Cronus, but in reality Mituna has Cronus wrapped around his little finger and is twirling his pinkie around Kankri at the same time.
And Kankri is obsessed with Latula because he knows she's trans and how can she not be so acutely aware of it at all times he must reinforce her worth as a woman she needs him 6lah 6lah 6lah coddling cissexist behavior disguised as "help". Frick that noize, Latula is a strong independent woman who don't need no Kankri. And Porrim takes a special delight in her "SUPPORT YOUR SISTERS, NOT JUST YOUR CIS-TERS" shirt, especially when Latula holds her hand around campus.
Latula has no problem with sticking her shoe firmly up Cronus's waste chute and swirling it around in his food noodles for a few minutes, and she's always eager to whack Kankri with a newspaper. She's got Mituna's back if he ever wants to take a break from corralling freshly-teenaged libido. And Mituna snarls at Porrim occasionally when he thinks she's not treating Latula right, but for the most part Mituna doesn't have anything to worry about from her.
ithinkimightshipthefiveofthemtogethersendhelp