I'm all for more Eureka if they stop attempting to capture the essence of MMOs 20 years ago. Grinding mobs for hours on end worked when spell cast times were 9s long and you generally had time to chat in between attacks. It doesn't work with a 2.5s GCD.

I don't really care for the social aspect either. I have a group of friends I play most content with, and when they're not available (and the FC people aren't) I prefer to play solo. (I also really dislike crowded areas in games....but w/e personal issue).

Solo Eureka is miserable pre-Pyros and I know "hurr durr that's not how its supposed to be played1!1!!" I don't care. It's incredibly unfun and downright inefficient. Logograms massively helped with this, and they (or some other equivalent) should be included from the get-go. Not in the 3rd installment of it, after the longest most depressing section.

It's designed for groups and to hold a lot of people. I'm obviously in the minority here, so that's not gonna change. That's fine. I just want better options that don't completely gimp me. The challenge log was nice. A daily version would be nicer.

Mob design could use a change too. No more of these dumb auto > auto > untelegraphed buster > auto > telegraphed aoe > auto > auto trash mobs with ten times the HP they should have.

I know they can make interesting non-boss enemies, because they did in Heaven-on-High 81-90 and 91-100. You approached and pulled each enemy there with care and had to know its unique mechanics.

I saw a Jinba and I knew we had to burn before Allagan Meteor. I saw a Warrior Nuppepo and knew the tank had to have their back to a wall for the triple knockback. I saw a Mukai-inu and knew the Ram's Voice needed to be silenced or it'll likely kill any melee too slow to get out in time. I see basically any enemy in Eureka and its just "meh, another HP sponge"

The logograms are a nice addition, switching up the relatively dull gameplay of Eureka. It was nice being able to actually solo everything and even get Gold ratings in NMs alone. If they can somehow mix the HoH-type mobs (dangerous, but not overly tanky) with logograms (switching up XIVs slow combat) I feel like there could be a real winner there.

tl;dr: Less focus on capturing essence of old MMOs, more options for solo people, more interesting mobs like Heaven-On-High 81-100, less HP sponges, expand on logogram system = happy Tlala, and daily reminder that sleeping dragons that can OHKO you and exist solely to force you to arrive at your destination slower is one of the worst cases of game design I've seen and its about as fun as stepping on a plug.