I've often railed against the idea of including a third universal specialization in FaD, on the grounds that Exile and Emergent didn't need a "capstone." I've been even more vitriolic in my dismissal of a "padawan" spec.
Now here's my contribution to the discussion.
Let's face it: when people become Force sensitive, most of the time they want to use a lightsaber. If this game is supposed to be about players having fun (and we all know it is) then a third universal Force sensitive spec would need to address that. Why not repurpose Shii-Cho for this?
It's described in various Star Wars media (okay, Wookieepedia) as a "tutorial form," the first form that students learn because it teaches them the basics of lightsaber combat. This would fit the idea of a novice lightsabreur (lightsaberist?) just starting out. The second tier talent in this tree could be something granting "lightsaber" as a career skill.
Now, pulling Shii-Cho out of the Warrior career would necessitate its replacement, which could be Juyo. Alternatively, this tree wouldn't need to be defined as "Shii-Cho Student" and could just be "Force Sensitive Acolyte" or something along those lines. The fluff might describe it as a person who actively studies the history of Force users in the galaxy and has found himself Force sensitive. That way, Shii-Cho remains in Warrior and keeps all its cool late-tier moves, and the players who want to get into lightsaber combat quickly have the opportunity to do so.
There are still a lot of holes to fill in, but I figured that's what this discussion is for. Also, though I did a quick search and didn't turn up any topics like this one, it's entirely possible that I might have missed it (I'm in somewhat of a rush at the moment) and a discussion is already ongoing. In that case, please link it and promptly ignore me while I go introduce my idea.