Years ago, Honda offered some awesome walk-behind mult-blade units, 13~20hp, 36", 48", 52" and 60" decks. There was even a sulky option, and you could get full hydrostatic drive or gear drive models. Sadly, the market at the time was starting to fall in love with commercial ZTR products, and Honda ended up discontinuing all mowers except the 21" models. But you're asking about the future, and Honda won't allow me to share anything about that. Honda does pay attention to what user's want and what's working for them, as well as watching the competition. I'll be happy to pass on any suggestions or a wish-list to the development team -Robert@Honda Caveat: I work for Honda, but the preceding was my opinion alone.