I wonder if we're going to get a Big Board that takes advantage of 16X9 widescreen, with a few extra squares going across, which could create some opportunities for new square values/special spaces (possibly a 24-square, 9X5 board, or a 22-square 8X5 board, compared to the original 18-square 6X5 board).
Otherwise, if the board is still designed for 4X3, it's going to have wasted space on the sides.