ilvl requirements of Heavensward content..

[Turin]

If they start with i100 as your base item level, every two levels could be the equivalent of 10 item levels. So, level 50 = 100, 52 = 110, 54 = 120, 56 = 130, 58 = 140, and 60 = 150. Then we start over with the same gear progression that we experienced in 2.0 without the item level numbers getting ridiculously high. Also, well geared players will not need new armor until level 57/58. Seems fair enough.

It would be interesting, for the sake of continuity, if there was a "genkai" similar to FFXI at level 50, where you have a quest to equip all i100+ gear to continue leveling. Instead of having to grind dungeons for this, perhaps it will be a quest to get each piece similar to the level 45 and 50 class quests.