AoC has almost gone down the route of "too good to be true" lol.
Dynamic Biomes with ever changing Weather conditions and areas that adjust depending on what the player base has caused to happen. Such as killing too many people, or invading certain towns, too much population, guild wars...all have impacts on the landscape, the mobs that spawn, the entrances to dungeons etc.
It's basically the child of Guild Wars 2 (Siege Battles), Archeage (Housing Systems), and Black Desert Online (Trading/Alliances/Voting Systems), topped off with a decent combat system of both real time and target combat (Blade&Soul/Terra and WoW mixed in together). I believe there was something related to invasion type systems as well (I could be remembering that wrong)...so also RIFT...but obviously not alien related.
Then on top of this, everything you ever hated about each of those MMOs, they have either improved or corrected on or made changes to the parts that nobody liked.
They released a Battlegrounds type AoC already soley for improving their combat systems (Or so they say), not sure if thats even still open, I don't think it is.
But you throw it all in together, the Graphics, the 100v100 Seiges, the complete mixing of all the different types of brilliant systems we've experienced...it just seems too high to reach. I'm honestly hoping they do, because it would be amazing, but it just feels like too much work.