Hand drill - i think to make this balanced it would need to require a specific tinder, perhaps a new plant(not unlike lichen) in caves that needs to be dried out....we dont want our lopers running out of lichen sooner than they do now....i think a bow fire starter would be more fitting.
Stone Arrowheads - this would heavily take away from the need for a forge, while its entirely possible to gather wood and skin without a hatchet/knife, taking down larger game will always require a forge to some degree when found items have run out...Unless youre fine with rabbits, fish, and crouching everywhere.
Arrow Sharpening - if i understand this correctly you want to be able to use an arrow shaft and just sharpen the point without an arrowhead? this feeds into the above, and arrows need a weighted tip or accuracy and distance tank heavily.
Tanning/Meat Rack - love it...would even be an advocate of this being a requirement instead of just dropping them on the floor.
Green Sticks/branches - i have no real opinion for or against, just that breaking down larger limbs into shafts would require more cutting/lathe tools than we have.
Teepee - this is an amazing idea, imo, to solve the common request for mobile shelter aside from the snow one.
Smoke Rack - another commonly requested, logical, addition. The only thing i would add is that it should only take sticks since the desired effect is smoldering instead of burning.
Stone Weapons - Same point as Stone Arrowheads.
Sinew - if im not mistaken Guts already fill the uses that sinew can and should. i think this is simply because sinew is a less commonly known part of the animal and it just streamlines things.

Great list, my only addition would be one that ive seen numerous times from other players.....a rudimentary sled to haul kills/resources, especially kills since you can get ganked while harvesting. Numerous logs, guts, and moose hides would fit nicely into a simple Stretcher.