They won't be getting rid of Egis.

They would have to re-write, re-shoot and re-voice almost the entire Summoner Quest Chain from scratch, and even some of the Arcanist.

It would be impossible at this juncture to remove egis entirely as they are ingrained into the entire game sooo deep they cannot be extracted anymore. On top of that they are a major balance point with Summoner and account for a great deal of the SMN DPS...

In essence Summoner would become little more than a Black Mage with different graffics for spells... which would require an entire rework for SMN balance and damage as a whole as the actual Summons does not do much actual damage in its spells or Summons compared to other jobs.

Summoner relies on stacked damage from DoTs + Pets + Summons + Spells/Aetherflow abilities.

While a Summoner Ahk Morn from Bahamut Demi is doing about 30K.... a Fire 4 from a Black Mage is doing 40-45K.

Its actually the reverse in this game where BLM is the one doing the Huge Chunks of Direct Damage, while the Summoner is stacking DoTs + Egi/Demi damage + Spells/Aetherflow abilities all at once and maintaining them in a constant stream of stacked damage.