The 5" Nighthawk, (655BX) was a regular catalog item a few years back. It was made for a couple of years and was dropped in the 2001 catalog. There was also a 5" tanto version, (Model 653BX), it had a partially serrated blade and the black oxide coating. It was dropped in the 2002 catalog. Both were good knives but sales were sluggish and they couldn't make it past the bean counters.
Interesting thing is I had a few of the tantos in stock at the beginning of the year but, with all of the activity in the sandpile starting up, there was a run on them and I sold all I had in about a three week period. The 5" models never did sell well.
I'd like to see a bigger blade too but 9" might be a bit much. 7.5" would be more realistic and the handle could remain pretty much the same. BG42 or CPMS30V would be a good choice for the steel but ATS34/154CM would be ok too. If they have the BOSMARK on them you will know the heat treat is right. No one does it better than Paul Bos.
Forget the flat grind. Sabre grind or, (preferably), hollow grind is the way to go on this one. It looks better and that translates to better saleablilty. Flat grind just doesn't sell to the average buyer and it's harder to get done right. (Ask CRK).
Having said all that, I doubt that it will ever fly. Why? Because a knife like that with the good steel would have to retail somewhere in the $200.00 to $250.00 range so that Buck could wholesale it at a profitable level. The problem with that is the "street price" would be established by some moron online who advertizes it at $125.00 or so to get the "preorders". This will cause legitimate dealers who need to make a reasonable profit on the sale to pass on stocking the knife. There is no sustainability or long term profitability. Buck won't be able to recover their costs and it will fade.
The same thing is happening with the TNT. Before that one ever hit the street it was being offered for under $180.00 online, even though the "dealer" didn't have any in stock. For a product with a $300.00 retail that is too low. There isn't enough sales volume to make up the difference and, even though initial orders were brisk, there won't be many, if any, reorders. I know I won't be restocking them. As it is, I probably have a lifetime supply. As long as Buck does nothing to support their regular dealers, that will happen with all their premium models.
If a company, known for low pricing, produces a premium item that should sell for 2 or 3 times it's usually priced products when it's known that the particular market for that company's products might not support that kind of pricing won't take steps to protect the vendor network it depends on then it isn't worthy of the support it needs from those vendors.
The same thing applies to the other side of the equation. No one begrudges buyers getting bargains or good deals but fair pricing works both ways. Asking for upgraded products or premium materials only works if those asking for these things are willing to pay accordingly. Don't expect to get Cadillacs if you are only willing to pay Yugo prices.
Sorry for the rant. I didn't intend for it to go here but the reality is that business is business. A company has to make a profit to continue operating and if the market doesn't support the vendors that won't happen. If a particular product isn't profitable then it will be discarded for one that is. Awhile back, Chuck Buck was heard to complain about not getting enough support from their dealer network. Well, as their biggest independent dealer in the San Diego area, I can testify that it works two ways. As long as they continue their current policies, they might as well stay with the cheap stuff and let their business find it's own level.