Even if it is to publish the World of Warcraft Extension Battle for Azeroth If there is still a few weeks left, the first preparatory quests will already begin in the game. Magni Bronzebeard calls on the heroes of Azeroth to go to Silithus and investigate the damage done by Sargera's sword.
World of Warcraft - BfA preparatory patch on August 14th
In this series of quests you have to use the power of your artifact weapon. Since these no longer work with the pre-expansion patch, you should tackle the quest as soon as possible.
It will also be tight for some heroic deeds like Ahead of its time: Argus the Zerrütter and Front runner: Argus, the Zerrütter. For this you have to kill the boss of the Burning Throne on the heroic / mythical difficulty, before he becomes trivial through the new levels and items of the expansion. The deadline for these exploits will also end with the Battle for Azeroth Prep Patch on August 14th. Also the reward for "The Blood of a Titan" for a victory over heroic or mythical Argus the mount Violet magic wings will go away with it.
Even the PvPers among you have to pull hard, the achievement "Demonic Elite" and the PvP-exclusive Elite transmogrifications will become heroic deeds at the end of the season and will no longer be available. The World of Warcraft team plans to publish more information about the end of the season soon.
Players will also have to say goodbye to first aid, some will cheer, others curse, but the secondary profession will be removed. All successes achieved with first aid then become heroic deeds.
The fansite WoWHead.com has a "What still needs to be done before Battle for Azeroth " Guide published, but it is only available in English. Check it out for sure.