Good deal, will definitely wait until then. I just remember the light farm being pretty irritating last go round (in HW), but got one really sweet AS1 group when it was bonus and it made it go quickly.
Don't wait if you haven't touched it yet. Do the challenge log in Anemos. Anemos goes really fast it's Pagos that sucks and is getting nerfed. Basically, go to Anemos, do the challenge log, maybe try shouting for someone doing it at low lvl like you but otherwise you can solo it, make sure to buy the regen potions at the vendor in town and play a decently strong solo class preferably, personally I went with RDM but PLD or SCH would be good too, even pure DPS if you're pretty careful. It takes a few hours to solo, spread it over several days if you want.
I started Eureka when I resubbed a couple resets back. Got to 12 on the first week's challenge log(would have been 13 if I didn't do it at 5AM and died 2-3times without getting a rez), then 18 on the 2nd week. I farmed FATEs for a few hours after that to get to 20, and this week I got to 23 doing the log. At 18+ it's easy to do the log in an hour or so finding a lvl 20 party for it, since most people do their logs in Anemos still since it's easier than Pagos.
I doubt they'll make the Anemos leveling part much better than that tbh, although they might but it's not gonna be a huge difference. Most likely what they will do is make FATEs spawn more and give more xp in Pagos for that part, since that's what sucks. Maybe also nerf the Aetheryte levels since those are fucking stupid.
What's the gear progression in this game? Once I made 50 I was able to get a full set of iron works on my character. I wanted to try a warrior and I got the level skip to 60 and that gave me a full set of shire gear. I went back to leveling my DRK and now he's currently level 62 in full shire gear I'm using from my warrior. What's the next set of gear and what's after that? I'm guessing it's a level 70 set but is there something I can use between levels 60-70?
Ironworks and Shire are the old "best" sets in their given expansions, so they're solid for leveling inbetween. That said you start getting better gear in the 55 and 65 dungeons respectively, so you can replace them halfway as you level up. Once you reach 70, there's several tiers of gear instead since the expansion isn't done, so you can't use poetics to buy the best stuff. Poetics are basically the old expansion tomes, everything gets converted to poetics when the next expansion hits.
The rest of the time, you have 2 main type of tomes, one uncapped plentiful tome that gives alright gear to catch up, and weekly capped tomes that give the best gear in the current patch. Atm that's Mendacity for uncapped and Genesis for capped. The genesis gear(Scaevan) is the current equivalent of Ironworks and Shire and once the next expansion hit that's what you'll buy with poetics, but until then it's harder to get.
The two tome tiers are also upgraded every main raid tier(6months), the former weekly capped tome becomes the uncapped tome and they add a new type of weekly capped tome. The old uncapped tome becomes even easier to get, with Centurio seals, another currency you get for easy bounties. That's mostly how the gear progresses, with the raid tier having an equivalent drop to the best weekly capped tome currently after it's upgraded(upgraded with raid drops also, which later become available to casuals) and the 24man raid having equivalent to the unupgraded weekly tomes but only available halfway into the cycle, 3months into the patch.
Here's a detailed post on how the gearing works at 70 atm, the only difference being added in 4.5 is that they'll have a 24man dropping 390 gear too(and later in 4.5 they'll make everything easier to get in preparation for the expansion):