Not sure if anyone cares or wants this, nor am I sure if it's appropriate to post in this manner, but in the case someone might and it might be allowed, I'll contribute. All I did was dupe the woodplanks texture and adjust it to the new types of wood (Birch pine jungle) colorschemes. That's all, I haven't considered anything else new in the MC textures. If you want me to do something else let me know, if this is fine enjoy, replace with your terrain.png in your downloaded palceon pack off the wiki.
That's all, enjoy.
p.s I'm new, and I'm just doing this as a placeholder. I assume the staff will be using something unique for the jungle logs, what with their steel ring on their log texture.