What change do you want to see on your main class for Endwalker ?

[Exodus-E]

- trait that changes Ruin 3 to Ruin 5

Not gonna happen. At least not as "Ruin V".

Ruin III and Ruin IV are known as Ruinga and Ruinja (respectively) in the JP. version.
And the -ja suffix for spells are the highest tiered ones in the series.

So at best, they could introduce a brand new spell to replace it, just like what they did with WHM (i.e. Stone IV -> Glare).

- trait: at level 58 or 68, Ifrit, Titan, and Garuda egi are replaced with Shiva, Ramuh, and Leviathan egi respectively (same roles). Another trait at 68 or 78 that upgrades them to a different set of primals we've encountered (I'm assuming they won't get rid of egi so I'm proposing this as an improvement on the existing system as a middle-ground)

It'd be much easier if they simply expanded on the "Egi glamour" system (like they promised) and allowed us to change them into any Egi we wanted.
Which is way, way overdue.