Since we have explored Azys Lla, Omega, and we've seen some technology in a few Allagan "ruins", what would be the chances of seeing more craftable Allagan/lab like furniture? Those computer consoles we see, test/stasis tubes, etc.

So far we have a few pieces of Allagan furniture from the Coil raids.

Perhaps the stasis tube could be wall mountable, and your character can even get into it and sleep in there, floating within it so when visitors come in they think they're in a sci fi movie. Then around that, a few computer consoles to really give it that lab like feel.

Make some of the items needed for the synth similar to how fine wax, amdapori stone, etc dropped in dungeons. Though, I'd suggest either it's a 100% drop at the very end and people lot on it. (Versus the old way where it drops to a random person.) Or buyable through tomes. Be it old, or new. (I'd also suggest using old tomestones. A lot of level 70 players do not have much use for poetics.) Maybe both?