It's already been said officially that all Primal Weapons from 1.0 will be kept in A Realm Reborn.
The easier way is to add new Primal Weapons with stats in line with old ones. Problem solved. :)
Printable View
Yoshi-P said that Gear would be change to fit within the new battle system. So the darklight and primal weps may not be the same when you log in.
Also the primal battle are still around remember all the primal are free to walk around eorzea. The free company that find a primal would be teleport in there instances. Once you win the fight with the primal you gain there power and i'm sure they would also drop the chest to get there weps.
Also i'm sure there others way to fight the primal just to get there weps if you like.
Also yoshi-p said there still ways to get all the weps from the primal even king moogle the only battle that wont be in 2.0 would be anything to do with the empire so you can't get the raven item anymore or the hats.
IMO each primal shouldn't have ALL the weapons, but rather have 1 or 2 weaps and other items very specific to it's atributes
Ifrit = STR ATT
Garuda = PIE EVA
Shiva = INT MATT
you get the idea
All primal would be Roaming around Eorzea because your FC/LS can have one primal under your control. He give said once you find a primal there a way for you and your team mates would be teleport into the primal instance. He said if you win the fight you have a primal under your control for a set amount of time example he give was two weeks. You also have to fill in a bar that you also have a limit amount of time to fill or the primal is release he did not say what you have to do to fill the bar up i'm guessing we know later on. They would be weather effects once a primal is summon and something saying LS/FC have summon "Primal Name". I'm really hoping for ifrit and such they be red sky and ash falling :)
He also said stuff like you can control who can summon the primal in your fc/ls and also summon primal in PVP battle if you like. Also you need a set amount of people to summon them i'm guessing so let's say your the last person standing you summon a primal and kill the boss due to the fact that it's at 10-15% or something. Also once you summon the primal you have a timer when you can go get other primal not sure if he mean your allow to get a different one or if you just not allow to get any other primal to that time is up.
I'm guessing odin would be allow to be under our control seeing how he a elder primal and he get stronger each time he is killed in battle. But ya every primal would be roaming in FFXIV you just got to go out there and find them and get them under your control :)
so no more spamming ifrit fights?