Someone should make this idea into a mod. It then might have a higher chance of actually making it into the game.
Lockheedmartin:
I approve of this idea of burnt wood. Adds possible texture and allows wood grain effects.
Another possible idea could be to have wood and plant turn pale colored when below 0°C to simulate water freezing in them.
We can use life or tmp of WOOD, like how COAL is burning.
(Optional)Life of WOOD increasing with the time elapsed, means the wood is growing and more 'durable'.
When ignited, life decreasing, it become burnt wood or charcoal if life is below certain level, disappeared if life is reached zero (similar to COAL, but of lower life, say, durability)