Hello my friends, long time lurker, first time poster here.
I wanted to put in my thoughts on some potential new Radiants here.
Ever since I read the description of Willshapers in WoR I have known they were my people.
I have been searching for them hidden among the pages since then and think they will have a very special role among the Knights!
The Willshapers divine attributes are resolute and builder and in the WoR interlude Talenel said that Kalak the WIllshapers Herald would teach people how to cast bronze when they had forgotten, I believe they will be the crafters and engineers of the Knights, not all of them, but a good portion.
I have to disagree @maxal, I think Navani has a major part to play in the story, not only will her perspective be the best view point for us as the readers to learn more about fabrials and trapping spren in gems, I believe she will rediscover how to make Shardplate, and that the combined surges of Cohesion and Transportation will be the keys to crafting it**.
The Knights we have seen so far have all exemplified the divine attributes of their order. Kaladin's desire to protect, Shallan's natural talent for creative arts.
Knowing that I am wagering that those who have a natural gift for 'building' are excellent candidates for being Willshapers, and Navani is noted at the worlds greatest artifabrian.
Along with her we had another great artifabrian mentioned in TWoK by Navani herself, Longshadow, who I believe is also an excellent candidate for the order of Kalak.
I think one if not both of them will be Willshapers and fill the role of tech support/R and D for the Radiants.
Besides those two I also believe that Axies the Collector is another great candidate for the Willshapers, he seems to have an affinity for spren, and is resolute in his quest to catalog all of them. (this one is more of a wish of mine as Axies was my favorite interlude and Willshapers are my favorite order)
Anyways, thanks for reading my first post, I enjoyed writing it. I got lots of other ideas and theories about the future of the Cosmere and hope to start posting here more, I will also hopefully be putting up a post in the Introduction area this weekend as I with to get to know all of you more by participating in the community rather than just lurking around reading.
**I am thinking Cohesion and Transportation will be the surges key to crafting. I believe from what we know so far that Cohesion is the control of the weak axial bond in molecules, the ability to change the state of matter. Solid/Liquid/Gas, partial or minor changes to the axial bonds would allow you to shape solids in your hand like clay as well. That combined with the ability to teleport molecules into intricate patterns could allow someone to craft manufactured type products extremely well. Imagine taking a block of bronze, a single solid block that thinks of itself as a complete thing, then turning it into a cloud of bronze. At that point the single block is no more and each individual molecule of the bronze could be 'transported' into a new pattern then solidified into the chosen shape. No need for castings or molds to create the metal portions of fabrials!