Just thought I’d post that everything has been updated on my Wowhead Beast Mastery Guide and is now relevant for level 120. The guide is more detailed than it has been in the past as Wowhead has really upped their standards for class guides (seriously, this was a ton of work). You can easily access it on any Wowhead page by hovering over the Hunter icon at the top, but I will link all the pages of the guide here too for convenience.
Shortly after the 90 boosts went live, Wowhead asked me to put together a guide for players who are brand new to the hunter class. The guide just went live today and it looks great! If you’re new to the class, or just want to brush up on some things, you can check it out here: Wowhead Hunter DPS Guide.
Keep in mind it’s aimed squarely at new players (all those boosted hunters everywhere!) and was intentionally kept simple! I know a different reforge can squeeze out an extra percent or two of DPS for a BM hunter under certain circumstances, but the goal was to avoid the theorycrafting stuff and keep it to the basics. Wowhead also has similar guides for every other class written by other class bloggers, so if you recently boosted a non-hunter, you can check those out here.