Originally Posted by
Zojha
It might change the "way" the relics are obtained, but not the time investment required to get them, because that is deliberate. So whatever content they intend to gate it behind - Quests, open world content, instances... prepare to get burned out from that if you're doing the relic.
Tomes are already fairly generous as they're rewarded by quite a lot of content and allow you to switch jobs whenever you feel like. I personally fear Eureka is gonna be a step down from that and force you into a sort of Diadem to advance your relic >_>