I've been contemplating about whether I'll add additional abilities and weapons to combat or not. But right now, I'm more focused on the story/characters, rather than adding more mechanics to combat.
Though, I do have some ideas about adding magic the player can use outside of combat, to help him deal with situations/help other characters.
The physical training the player can do at the barracks, will also help improve the player to deal with situations/improve his combat abilities.