Question about timeline and PATCHES

Hey guys
So far I've seen the timeline being based on dungeons/raids rather than actual patches (which makes sense I guess since we are, game-version-wise in patch 1.12). However, I am wondering what the timeline is for the actual patches, I'm thinking in particular of some of the important item changes that occured such as some patterns no longer being BoP (patch 1.3) and tier 0.5 dungeon sets etc. Dire Maul is being released soon I heard, thats patch 1.3. Does that mean that ALL of patch 1.3 changes will be implemented or is it just the dungeon?
So far I've seen the timeline being based on dungeons/raids rather than actual patches (which makes sense I guess since we are, game-version-wise in patch 1.12). However, I am wondering what the timeline is for the actual patches, I'm thinking in particular of some of the important item changes that occured such as some patterns no longer being BoP (patch 1.3) and tier 0.5 dungeon sets etc. Dire Maul is being released soon I heard, thats patch 1.3. Does that mean that ALL of patch 1.3 changes will be implemented or is it just the dungeon?