From what I've seen it all primals' "extra" ability (slipstream, cyclone, clap) seem to persist indefinitely until you access new aether.
Ifrit's and garuda's are tied to their summoning. Titan's is tied to his gem spell.
example:
"Additional Effect: Adds "Slipstream Available" effect to self
Duration: Indefinite"
You would think we would have more ogcds, but no they made a lot of our ogcds into gcds
https://cdn.discordapp.com/attachmen...SMN_Skills.png
You can see it on the list here. Under summon bahamut you see the japanese for "spell" (yeah it's a spell now.) and under energy drain down at the bottom, it retains it's ability status.