So the more I thought about the Rarenarena plate, the less its movements made sense--if the plate is moving south, for example, shouldn't the subduction zone at Lykenel A also be moving south? Therefore, I smoothed out the western boundary of the plate and rotated the continent slightly (so now it's moving almost directly south) and made the eastern wing its own plate (Kidder Plate). This is the resulting map (prior boundaries still apply, with Rarenarena-Kidder a transform boundary):

Click image for larger version. 

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(disregard the weirdness in the northwest corner of the Rhandas B Plate)

I can update the videos, but I think the movement makes sense now.