Most heirlooms only work in a limited level range in their default form and must be upgraded to work at higher levels. That costs gold, and you’ll need around 30,000 gold to outfit yourself with a fully upgraded set (counting only those that give you bonus experience). You may need to spend some time on a boosted character to acquire the gold you need to outfit another character with heirlooms, but it’s well worth the effort.
Tiragarde Sound and Stormsong Valley are both fairly similar zones, but Stormsong is a little longer, meaning that you might not even have to finish it to hit 120. Tiragarde also comes with a bit of a warning. There are plenty of side quests to do in the zone after you finish the story quests. Don’t do them. It’s not worth the time or the experience you’ll get.
First of all you should create a new character on your account on the desired server. Then you order character levelling service and give us your login and password. ATTENTION! You should not be asked for secret question and any other account details. Beware of scammers. After payment is finished your order goes to the booster. Our levelling specialists will earn all needed levels for you very fast, because they know the best routes and they do it every day. Character levelling is totally safe, especially because our boosters don’t use third-party software, all characters are hand-played. As soon as your character gets to the desired level, you will get a notification. And then you’ll be able to develop your character further and enjoy the experience of playing at maximum level.
We have no idea what implications this might have and whether or not it even indicates anything, since Patch 8.2 is still in testing and a Tuesday launch is more than unlikely due to Essence tuning and Azshara's Eternal Palace, which is supposedly coming shortly after launch. Blizzard said they wouldn't be delaying the new raid like they did with Battle of Dazar'alor.