My hope is teams in sparsely populated states (teams/events wise) or teams teams in states who in the regional model typically competed out of state for their home events, will have the ability to choose and declare which region they will belong to based on what is best for them. This is of course if future developments on inter district play doesn't solve the issue to begin with (which I hope they do).
Basically though, this would implement the idea NE FIRST had proposed in the planning phases of the conversion in regards to the NY Tech Valley. You can read more about it here:
http://www.nefirst.org/2012/10/24/inter-district-2/