There aren't current plans to let you rename the protagonist as they became more of a named character like commander Shepard and adding it to this iteration would take reworking a lot of the dialogue.
(And we're making a spinoff novel of that character actually and what they were doing directly before the events of Lust Quest: Cannie)
However I'm looking into doing a project in the future where you do get to name the character but it's still in the conceptual phases.
I'm glad you enjoy the game! Originally I wanted you to be limited on your party size due to having some choices related to it in game, however that decision fell through when the dialogue and branching path system I was working on became too tedious. I've since reworked and made a new engine which I'm using to work on my next project though.