Yoshi P mentioned in an interview (Dengeki Online 19.08.2014) that he likes to increase original coil gear ilvl by 5 (making gear i95 and weapons i100) to keep it relevant. That specific interview was mostly about 2.4 stuff, so we might see this ilvl increase in just a few weeks from now.

With a little luck this acts as an incentive for experienced players to redo it to farm i100 weps for alt jobs since it's basically a 6 minute fight now with 20% echo and thus quicker than Ramuh EX (at least i suppose, cleared T5 but didn't do Ramuh EX yet).