Would you be disappointed if they re-used elements for new Primals?

[HakuroDK]

For example. Right now we got Titan, Ifrit, Garuda, Shiva, Garuda, Leviathan.... but perhaps another continent has other Primals with other names who are elementally aligned?

It shouldn't be an issue. The FFXII Espers are all but confirmed to be the next "Primals" in 3.0, what with the rise of Zodiark in the main story and an egi of Belial showing its face in the Summoner storyline.

I mean, not that it matters if there are elemental similarities. It's not like those elements can be exploited.