I wonder if we'll get to see peridot's that have different hairstyles or that are tall without the need for limb enhancers. It'd be interesting to see a drove of peridot's working. I wonder if they'd be uniform like rubies, or have more differences since they seem to be technicians rather than soldiers. There's still the question of whether or not there are non-fusion Garnets. Maybe the final episodes of season 4 will offer more answers?