Looks good and I like the art on there. Ninja vs pirate...classic!
We're most likely adjusting the rulebook to reflect the plus shaped play! On smaller tables, its the easiest way to do it, we were just playing on larger tables where sitting side-by-side was most common when we laid out the rulebook. :)
The playmat is PERFECT!!! We specifically use the "cross" format to play so that works out well.
But...what if people like the format you use in your videos and book? The 4 square parallel play? Whats a good way to put it? Corners? Would you be able to put the cross format on one side and the corners format on the other? Or would that put the cost through the roof?