Just get 6te or 5th to League 1. Both may not be as skilled as other regiments there but 5th can bring a strong attendance and give big fights which is always enjoyable, and 6te have been here forever it seems and surely deserve that spot too. That way, you can free a spot in League 2 for the 7pp, and relegate Movement's regiment back to this 'Contenders League', if it ever happens.
Honestly, given their current behavior in the RGL, they should have never been accepted in the NWL in the first place so not much of a big deal really.