I found this from Brandon:
INTERVIEW: Jan 11th, 2013
Reddit Earlybird Q&A (Verbatim)
TIFFRANOSAURUSREX
If you had to think into the future of Randland, what do you picture the remaining heroes doing?
BRANDON SANDERSON
Well, in RJ's notes, Perrin was to be involved in the Outriggers (which would be the story of Mat and Tuon in Seanchan.) So Perrin would make his way there, eventually. (I don't know how that would have worked with Perrin's new obligations.) From here, I stray away from canon (meaning what RJ wanted) and into my own imaginings. I imagine that Rand went to see the world, becoming like Jain Farstrider. Min joined him, and they saw the world. Aviendha and Elayne spent decades, maybe centuries, leading their own people before retiring to join the other two.
TAGS
rand, perrin, outriggers, min, elayne, aviendha, the harem, mat, tuon, seanchan, fourth age,
Linked here: https://www.theoryland.com/intvsresults.php?kwt='the harem'
Don't know if this is considered a good source? You guys would know here! I think this makes sense. Except I'm wondering how long Moridin will live. I doubt as long as Aviendha and Elayne but who knows? Anyway, the whole thing feels a little hollow.
I'm interested in knowing what others think? Were you disappointed in that respect? If not, can you share your enthusiasm? I want a good resolution for all the characters. I quite liked all four!