Kosheleva's reception will never improve. We've seen her in SESC and Rezende did nothing for her.
I think the most likely scenario is a bench role under Parubets and Voronkova... but Lazareva wasn't bad at reception so the odds are high Kosheleva's going to get the cut before Tokyo or she's making it as a fifth OH but Russia badly needs a defensive OH so an offensive OH kinda does not make sense.
I hope Kurilo makes it because she's guaranteeing a good pass and a good attack at the same time but that Simonenko girl is receiving a high volume of serves despite the lower attack percentage. That's very interesting for an OH.