I decided upon possibly writing a series of short stories for the C.I.R.C.L.E. canon. Due to writing the crime basis of the Double epics (namely Crime and the City and The Final Game, the former to a greater extent), I might write a series of short stories based on the other side of crime.
Create a new island full of laws and codes, and have Matoran and Turaga lawyers, for use on islands such as Doppel Nui and anywhere else requiring law to be carried out. I'd have to figure out how it would be carried out exactly, but it is a possibility I am definitely keeping open.