New event server are definitely nice for new returning players.
Some tips on top of my head :
- You will get super buff for the first two times clearing any dungeons up until 3-stars level 65 dungeons. You can exploit this fact by not clearing a second time (resetting the dungeons just before the final boss, exception being the Medusa (not the Giant) in CR, and the bee in Sabex Armory). With this you can pretty much solo your way to 65 in like 4 hours max.
- Get Master in one crafting profession (imho, the best is Alchemy then Weaponcrafting). Designs cost a ton on normal server but apparently very cheap on Manahan.
- Gearing is more streamlined so it is more of a gradual process than bursting at the start of every patch like before. Can be considered longer grind depends on how you approach it and also apparently BHS has decided to double the lifespan of gear cycles (it's 12 months instead 6 months).
- Sorc's guide on Essentialmana is still very relevant. They are doing OK-ish on DPS list now. But my own advice is to choose one of the seven soon-to-be-awakened classes, namely : Lancer, Warrior, Brawler, Berserker, Slayer, Mystic, Priest. They will be, without a doubt, the new FotM. Don't be surprised if your non-awakened class does less DPS than a Lancer :).