A headlamp will be handy as will rain gear and blankets or a sleeping bag. A extra tarp to set up to make a sitting or standing area different than your sleeping are will make life easier in bad weather.
A extra knife will be a great backup in case you break or lose your main knives.
A second on the salt both for the cook kit and meat preservation.
Vitamins will help keep you healthier.
Stainless steel screws or nails are often handy as is some stainless steel wire.
A spare blade for the Sven Saw can be a life saver if you break or dull the original blade.
A SAk like a Victorinox Forester with a the saw and can opener can have many uses in a bug out situation