There is a specialization for the Seeker, that is called the Hunter. This one specializes in "confronting and overcoming dangerous creatures".
My problem with this specialization hasn't so much to do with any specific rules, but rather the theme, as it seems to me that going about in the galaxy to hunt for excitement, sport or to test one self is not something a Jedi would do, at least not one following the light side of the Force.
Now I realize that Force & Destiny is not about playing Jedi, but rather "force users" and "force adepts". But who are we kidding? Most players will want to play Jedi, or Jedi-in-training. So of all the specializations, the Hunter is the one that is least "Jedi-like", as taking life, even the life of a "dangerous creature, when its not neccessary, is one step further on the path to the dark side. And seeking out creatures with the intention to kill them, just because they're dangerous, is not much better.
As for the Seeker, a specialization I would much rather have liked to see here is something along the lines of the Archeologist from Edge of the Empire.
Any thoughts?
-Eirik