The Diaden and Euraka

[Squintina]

If eureka is or involves another fate grind or even anything to do with fates. people are gonna be incredibly angry.

Generally speaking if they never added another fate to the game ever. It would still be too soon.

The whole reason the diadem revamp failed was because people went in once.found out it was basically just a fate grind and never went back because everyone hates fates

I like diadem and usually have lots of fun when I get a party going.
The real problem with Diadem (and with any content that dies really) is a lack of rewards. Once a person has the mount + minion, there's little incentive to get a group going to get back in there just to be able to buy irrelevant gear or materials that are purchasable elsewhere.

Think of it this way: until the alliance roulette popped up and gave really good exp, it was really hard to get a group going for those raids. Then better rewards in the form of a roulette were added, with very little change to the content itself, and suddenly they're popular. Fun had little to do with it, since the content didn't change,it was just not rewarding enough for players. Rewards, and consistency in rewards (not like Atma fate farming where one person can get an atma in their first fate while another has to do 10), are big drivers of what people eventually find "fun" over the actual content itself.

If they do put fates in Eureka, as long as the progression is predictable for everyone and the rewards are commensurate with our effort, it would still be ok for most people.