I'm 99% sure they won't.
Psijic Skill line, being like Fighter's/Mage's Guild and Undaunted, is the substitute of a class, like Warden, in this new Chapter. It takes more effort and balance than a skill line like DB's/TG's ones, that only have passives that don't influence combat.
TheShadowScout wrote: »...why would thieves have combat skills? They are there to pilfer stuff, not to kill people... if anything they might want something to, I dunno, escape if the guard are after them, or convince the guard to look the other way if they get caught...
The TG brings a nice thievy feel without any need for active skills, simply with all the theft and law evasion options.
And the DB has their Blade of Woe, and you don't even need to give up a skill slot for it!
Skill lines:
Disguise
Distraction
Incapacitate
Movement (grappling hook, etc.)
Escape
Etc.
There are tons of things that would add flavor. Strictly from a utility standpoint without NEEDING to roll a NB to keep them effective, or rely on potions or gifts from the dark vendor.
I would welcome this whole hardheartedly.