Yes.
Damage Over Time
The only thing I would change about that is perhaps more of a DOT selection, or DOT manipulation. Currently, the only thing that can manipulate DOTs is Bane, Fester, and Contagion. This needs to change in some way. Maybe add an ability that turns DOT into HP/MP over time. Maybe add an ability that combines Bane and Fester to produce an AOE blast to work down trash mobs.
Egi
Egi needs a total work over, in my opinion. There should be more of a link between the Egi and Arcanist than what currently exists. Having one Egi summoned should mean a connection between the ACN/SMN and that Egi that would not be there otherwise. Perhaps this could manifest itself in abilities/traits only available when that Egi is summoned, that fall outside of the realms of pet commands.