Just in case you didn't know, in Server 1 you can empower the rune up to lvl +15 instead of the tradition +12 and 6 stars instead of 5.
Anyway, seven months ago i sent a ticket asking support when will it be available on server 4 (my server). The asnwer was "+15 lvl and 6 stars are still in beta testing on server 1 and other servers needs to catch up " remember that was seven months ago. I would have posted a pic of the response if the tickets lasts but unfortunately they disappear.
As player who have 2 accounts, Server 4 lvl 120 and Server 1 lvl 118. The increase in rune makes it way better and useful than the current rune. Note that i'm not a player who spends. I'm Vip lvl 8 on both accounts (i only buy monthly deal). Yet i'm asking again will other servers ever get +15 and 6 stars?
Servers from 1-4 are at the same level and gear rarity for months and server 5 will catch up soon.
Please don't leave a reply saying that Servers 7-11 doesn't have runes, the subject was already covered in another topic.