Replace Henchmen [GW2]

Introduction:
-Hi, I just thought let us not bring henchies to GW2.
But heroes, so our future henchies would be part of the storyline.
Devona and the others may be part of it but why aren't they heroes?(question that shouldn't be answered)
And we may customize them too.
But I am not saying anything bout having more heroes to bring but change henchies to heroes.
For GW2 only, not GW.
And it would be nice if they gameplay with heroes(henchies) is like Granado Espada^^.

And you do not level up heroes but they level throught missions.
So like a whole team could have same levels of heroes.
Their is no weaker one to choose from, none.
Or the level of your Heroes are same as yours.
This is the prob is most games having 2 or more characters to play.
Especialy in FF games, you have alot of chars to shoose form but some are weaker than others.

i was under the impression that there will be no hero system in GW2.

I think there's a Companion system in GW2.

Like a Hero but you're allowed only one at a time.

It is told that in GW2 there will be only a 'companion' system. One single hero that help your character.