Sounds like a fun trip. Are you basecamping or moving regularly? Having read your kit list a few things come to mind
- A groundsheet will be a good idea to help with admin in the evenings. Polychro would work well for this
- Rucksack is heavy!
- You don't have anything to keep you warm in the evenings (i.e. puffy insulation), unless you're going to use the Jerven for this. Otherwise not sure what use the Jerven will be...
- Have you got any torches will long, low runtimes, that will be useful. Plus a red filter for preserving night vision
- Water bottle - what are you using on the move? Something that doubles as a hot water bottle might be nice
- Does the SAK have a saw on it? Might be useful to have one
- Why are you taking a separate outfit for the plane? (looks like you're taking a spare set of clothes from your list)
- Maps - got the right ones?
- How good are you nav skills? Basic GPS might be handy
- Reading materials. I'm guessing the nights will be long, what are you planning to do? A book, or even better a kindle, would be good. The new one out in November is backlit (or actually front lit) for night time reading
That's it for now
EDIT - think about Gaiters too. When its wet, boggy, muddy or snowy these protect your boots/socks/trousers well, plus you can sit cross legged without worrying about getting crap everywhere. For bushwhackingy stuff they're excellent