It would be nice if they did, but don't think it will happen.
Below is the # of years for each effigy.
1953-1964 12 years
1965-1989 25 years
1990-2003 14 years
2003-2012 10 years and counting
I think it would also be cool but likly not to happen
1c George(1937-1952) Collection: http://www.pieceofcurrency.com/Home...52)/qbvbsite