i doubt zodiac will continue or be needed at all. the current quest even SAYS relic weapon COMPLETE. what yoschi meant probaly was that the zodiac quest will REMAIN in the game for those who wish to do it. they wont further upgrade zodiac nor require it. i would never turn my zeta into a catalyst i did rather do the new quest and keep the glamor option for me.

it will be a new relic quest for the entire 3.0 series which starts with heavensward and gets its first upgrade with 3.1 patch later. just like relic on 2.0 got zenith with 2.1