The Nier alliance raids drop coins that you can upgrade your Cryptlurker gear; ilvl 520, so getting those out of the way is recommended plus once you're done with the raid story, you can do a weekly quest afterward tied to the raid storyline to eventually get "Witness to the Dark Apocalypse". If you haven't done Eden, I recommend you do that as well.

Also, if you want to get into Bozja and get your relic for any class, I would also recommend getting that out of the way as well. With EW getting closer, there is no guarantee that Bozja will remain populated after it is no longer current.

If there are optional dungeons you haven't done, get those out of the way too as well as do the Sorrows of Werlyt (The Ruby Weapon stuff); the lead writer for EW recommends to do that as it does tie into lore that may be important later on.

What I'm personally doing right now is getting as many jobs and classes geared up as well as focusing on any relic weapons I can squeeze in, might even do some mount farming. Over all, it's pretty much what you want to focus on before EW.