Yesterday in the war room I asked if it was believable if Mages were called Mancers in the US and Witches/Wizards in the UK. It was prompted by a thought that the pixies had to come from somewere, and maybe Magi CIS and the Brownie Liason was set in the same world.
The answer I got from the war room people, was Yes. And something clicked in my brain, starting a lot of thoughts tumbling around in my mind.
A lot of it is things that will never show in any of the stories, like how the differences occurred ( Clans vs not clans), the stability of magic etc.
But, I look forward to spending the weekend doing research and writing a lot of notes. :).