1. I agree about the Blue Wizards. It's intriguing to read
that they were "missionaries" in the East. Even if they
"failed" as such, their overall influence could have been
ameliorartive (sp.?) towards the Easterners and Southerners
Sauron influence.
Related, how many of the wizards were allowed back into
Valinor, and on what conditions? I'd imagine Radagast was,
if perhaps demoted a peg or two for scatterbrainness

,
but what of the Blue Wizards- sent to much more trying
and challenging situations then the other three?
2. The tale of Aragorn's journeys- including into Far Harad where the
stars are strange, perhaps attenuated like Tuor's in Unfinished Tales.
3. As was done with Eowyn, more stronger/assertive women in
Beleriand and Numenor. Picture Finduilas taking on a dragon or
(being rescued by the Brethil lads while being taken north) becoming
a lady Robin Hood in the forest, and not too forgiving towards her
ex-
boyfriend, that hot-head Turin.
And speaking of Queen Beruthiel...What of her story. Perhaps she
and her shipmates survived.