Aside from Team RWBY, there could also be other characters from the RWBY universe. Ozpin might play a role, perhaps as an advisor or a figure with hidden knowledge about the space fleet. And of course, there could be new characters created specifically for this fanfic, like alien allies or enemies that the RWBY characters interact with.
It's possible that in this 'space fleet rwby fanfic', some secondary RWBY characters could also become main characters. For instance, Jaune could be part of the story, maybe he has some special ability that is crucial for the space fleet's mission. Or Pyrrha could be brought back in some way in the context of the space - related story, like her consciousness being stored in a space - age technology and she helps the team from there.
Chapter 505, ""Postpartum Care for Sows", is the clearest early answer because it turns Shang Shaobai's situation into a concrete plot event.
Chapter 852, "Could That Be an Aphrodisiac Spell?", is the clearest early answer because it turns Rong Junsheng's situation into a concrete plot event. It opens with Rong Junsheng's words startled Shi Lei and Rong Kexi.
Chapter 754, "Evil Can Never Defeat Justice", is the clearest early answer because it turns Fang Wenzhe's situation into a concrete plot event. The chapter gives readers a real answer by opening on After the court trial ended, everyone immediately threw a party for...
Chapter 565, "Our Homeroom Teacher Isn't As Twisted As You!", is the clearest early answer because it turns Ai Xiaochun's situation into a concrete plot event. A useful checkpoint is the way the scene starts with After the ingredients were delivered, Chen Manman handed them all...
Chapter 885, "Isn't This Wine?", is the clearest early answer because it turns Isn's situation into a concrete plot event. The chapter turns that into something concrete by moving from Daoist Shuiyun's words weighed heavily on Jiang Li's heart like a...
Chapter 682, "Too Conspicuous to Keep Around", is the clearest early answer because it turns Gu Yu's situation into a concrete plot event. It opens with Taking advantage of the still-open elevator doors, Su Yinwan quickly...
Chapter 813, "She Has a Child?!", is the clearest early answer because it turns Meng's situation into a concrete plot event.
Chapter 923, "Eight-legged essay?!", is the clearest early answer because it turns Miss Rong's situation into a concrete plot event. A useful checkpoint is the way the scene starts with I just went to her house for a meal, even if my relationship with my...
Chapter 736, "When Will You Come to My House for Dinner?", is the clearest early answer because it turns Jiang Li's situation into a concrete plot event. It opens with Walking outside the tent, Zhao Lang waved his hand.
Chapter 813, "She Has a Child?!", is the clearest early answer because it turns Meng Xuezhi's situation into a concrete plot event. The chapter turns that into something concrete by moving from In the past, he might have helped Meng WanZhi speak.