If the lucis tools are the crafting relic and players will be rewarded for having their zodiac in 3.0,i don't see why the lucis would be any different. I'll go so far as to stay that the lucis will be a 1 to 1 trade in for the level 60 AF main hand, without it; the player will probably be required to complete a tedious quest line.

Edit: Think of 3.0 as a soft reset, players won't have to do ALL of the 2.0 content but some of it. Supra will get nerfed drastically but i don't see lucis being nerfed since it is already incredibly easy to obtain.