Most of what I want is not new, it's old stuff that's no longer available. They had a right idea, then changed their mind.
I know they're not fashionable anymore, but what I'd like to see is at least a partial return to external frame packs. I see the value of internal frame for technical climbing but for trail use, even 99% of off-trail use, the pros and cons of external vs internal frame are overwhelmingly in favor of external pack frames.
The absolute best backpacking pack I've ever seen, by a wide margin, is my old 1980 vintage Kelty Tioga II. The only things that could be done to improve it is add an internal sleeve for a hydration bladder and better attachment points for external gear like fishing rods held vertically instead of horizontally.
Mine is about 4600 cubic inches. If they'd offer the same features in a 3500 and a 4000 cu in pack, they'd have real winners.
Other things?
Buck should bring back the model 110 with a titanium handle.
A slightly smaller collapsible bucket that would go clear inside a pack.
More fishing tackle makers should make pack rods with slightly shorter segments, say 14-15 inches, that actually fit inside packs rather than having to be attached crosswise to the outside.
Hammocks with slightly insulated bottoms that don't require a separate pad or quilt for medium temperatures.
Finally, a freeze dried axe. I love a good axe but they're heavy. I think freeze dried axe, just add water, would be cool.
Tom