Multiple MP Chars

Could you be a little more specific?
You can already create up to 5
different characters for MP right from the start.

I've seen somewhere that you can change the costume
appearance via a player side mod.
If that could be implemented via server patch and mod,
I think it would be an excellent idea.
The only problem is the "hard coded" Trent character
that would have to be worked around.
Of course, not all players are "Trent" (even less are they all
male gender).
That is part of what the "holy grail" source code is all about.
Part of that code calls upon "Trent" as the interactive
element between the player and the environment.
Other elements are coded to interact with the Trent
character. (incredibly simple since there are no other
"characters" that a player can assume as the interactive
element).

I am certain it would require some additional code variant in
order to accomodate the other character elements,
such as King, Juni, Tobias, Walker, Von Clausen, Hakira, etc.
basically refering to all the characters you've encountered
during the story line.

Personally, I'd like to see and hear a different named
character called upon and hear their voices.
(examples:
Ah Trent! Nice to see you again!"
"and you are?"
"I'm (name)!".
"Ah (name)! Nice to see you!"
(catch my meaning here?)

The other parts such as "I'm engaging Freelancer Alpha x-1"
would basically remain the same.

Someone correct me if I am wrong.