Some rather exciting news (to put it mildly) reported at the annual conference of the American Chesterton Society last night...
 
Martin Thompson says that Bishop Peter Doyle 'has given me permission to report that the Bishop of Northampton is sympathetic to our wishes and is seeking a suitable cleric to begin an investigation into the potential for opening a cause for Chesterton.'"

[Source]

Now just waiting for more details. :-)