Give the possible Eureka 5.X its own weapon, and separate Relic from it

[BillyKaplan]

But that's because tomestones are the universal currency to ensure that everyone has access to everything, so it makes them to put them in pretty much all instances.

True, but that was one example. You could do weekly or daily quests that are mutually exclusive that send you either to do a roulette (similar to how you can get Alexandrite maps), or perform some objectives in Eureka 5.0. Tired of roulettes because you already ran them so much and you have nothing to level and capped on tomes? Go kill an NM in Eureka. Stuff like that.

[Reynhart]

You could do weekly or daily quests that are mutually exclusive that send you either to do a roulette (similar to how you can get Alexandrite maps), or perform some objectives in Eureka 5.0. Tired of roulettes because you already ran them so much and you have nothing to level and capped on tomes? Go kill an NM in Eureka. Stuff like that.

You could, but there's still no strategic reason for SE to spread the weapon and would only diminish the value of Eureka, unless you do the same for every other end-game weapon. This way, it would basically be "Do only what you like to earn what you want"...and people would have no incentive whatsoever to leave their comfort zone and try more demanding stuff because the reward is already available.