Just wanted to throw a quick post up regarding AP and how to get a nice little jumpstart on it for 7.2. Also a few points for Alts too!
1. Complete a M+ of at least +10. This will maximize your reward of AP (and gear) come next week. (the "cap" for reward in M+ is dropping back to +10 come 7.2. It also now comes with a large AP chunk). Do not open your M+ chest until you get AK 26!
2. Complete and turn in all Emissaries from Thursday to today (Saturday). Starting Sunday, either wait or complete all Emissaries, but DO NOT TURN THEM IN! The 100k AP you normally get will become ~400k AP per emissary once you get AK 26 (which you can get on Tuesday).
3. If you have any storyline quests (Suramar, ToV, Artifact, etc) that give large boosts of AP, do not turn them in til after AK 26! You'll get 4x the amount and this will give you a huge boost.
Basically, any large boost of AP you can obtain, you should wait for 7.2 before picking them up.
4. Regarding alts, if you don't already have Order Hall Advancement maxed, wait for Tuesday before starting any new ones, as the duration is being cut tremendously (e.g., T5 going from 5 days to 18 hours) and the resource cost going down as well (T5 going from 12.5k to ~3k), saving you tons of bloods to spend elsewhere.
5. Also regarding alts, if you don't need to get their AK up immediately, it's a better idea to just get your main's maxed then buy the compendiums since they only cost 1k for a maxed compendium instead of 500 per AK. Again, tons of blood saving.