Well, another prime Radiant candidate is Adolin.
WoB:
Q: Are there Radiant orders that would take someone like Adolin even after what he does at the end of WoR?A: I am not going to say whether or not Adolin will become a KR, but yes, there are several orders that would be very happy with what he did.Q: Like the Skybreakers or Dustbringers?A: The Skybreakers would probably not want him because he broke a law, but there are other orders that would think he completely did the right thing and be very happy with him.Q: Like the Dustbringers?A: (Didn't say anything but looked up at him, smiled and half nodded)
That being said, it's also been stated that Adolin's Shardblade was the spren of an Edgedancer and that it was possible for Adolin to revive the spren should he take the Oaths of the Edgedancers and do something else he may be able to revive the spren (http://www.17thshard.com/forum/topic/22247-firefight-tour-slc-1515/?page=2#comment-224039). Following this theory, the fact that Adolin talks to his Shardblade as if it was alive and imagines that it was talking back (http://coppermind.net/wiki/Adolin's_Shardblade#cite_note-Words_of_Radiance-14-chapter-2) may be foreshadowing that something along this will happen. (It would also make for a suitably awesome scene along the lines of Kaladin saying the Third Ideal)
(First post, hope I didn't do too bad)
