Originally Posted by
MrThinker
Just in case you weren't aware, patch 5.35 will be the next chapter of the StQ story, and will include a new instanced field zone similar to Eureka, including a public dungeon like BA. You also will be able to upgrade your weapon through this instance, OR through other methods outside of the instance itself.
At least that is what they have planned. Most likely, the new instance will be the most efficient way of upgrading relics, but for those who do not want to put so much time into it, other options similar to the ARR/HW relic steps will be made available.