I apparently copied over part of the text there while copy/pasting everything to the post. I'll fix that now.
Yes, I'm working on a stealth based skilled class. Sneak-Thief was meant to be that, but I felt like it was going in the wrong direction. Hence the change.
I'm currently planning an Int based class, a stealth based class, and a Cha based bard-like class.
I'm also toying with a 4th combat class idea.
Edit: There, that should be fixed now.
Edit #2: I'm strongly considering changing Sniper to Skillful only and making the more generic Archer archetype I'm currently designing be for both Combat and Skillful.