Lightweight Coaches

Just wondering if there will be any variation(s) of the lightweight coaches - 44, 48, 56, 60 seaters to name a few. Can you tell us what the configuration will be for "non zephyr" sets? I realize you can't come up with every variation that exists but I don't want to settle for one that my roadname did not use.  BTW, thanks for producing lightweight livery, its long overdue.  

Thanks