I don't think that Covenant would spend his time regretful for not being able to find Joan and Roger. It's not like he spent his time after the end of the first chrons hunting them down (how would he have found them? did the terms of the divorce include a restraining order?). And Covenant's personality in the 2nd chrons when he has found Joan doesn't seem to indicate he is dependent on her - he's being strong for her.
I also don't think the dickishness would necessarily continue, since it's not really as prominent in the 2nd chrons IIRC.
As for finding another white gold wielder....IMO TC being the white gold means two things at least, maybe more (I haven't read 2nd chrons in a while). First - the white gold ring represents the commitment between individuals (SRD said he needed the ring as a symbol because of this). The ring was important to Covenant even after Joan divorced him, and Covenant didn't want to lose Joan (one of his self-stated moanings is "Joan, how could you give up
everything!?" in response to her divorcing him). He held on to the ring like a talsiman until he ran into the beggar, and the beggar wanted him to hold onto it, and to his commitment. Two - the white gold represents his commitment not only to Joan, but to himself, in part because committing to the marriage with Joaan was because he loved her - committing to it was a commitment for his sake, and therefore a commitment to his well being. The beggar asks TC why he doesn't surrender to death/kill himself, and TC says "because it would be too easy."
Both TC's ability to commit to himself and to others is there as potential at the start of the book, but it takes the first and second chronicles to bring these abilities fully to bear - a tthe start of the series, his abilities in both categories are critically deficient. Theoretically, I think anyone else in a similar situation could make a possible WGW if TC wasn't there.
I'm not sure that either Roger or Joan, simply by virtue of being related, are good candidates.
Considering that the Creator knows Foul is still around, I suspect he wouldn't have offered to let Covenant stay in the Land if the Land absolutely required him as a defender in future years.
I think I never realized this until now, but when Covenant was in the Land, with his ring, his body lay unconscious in the real word ... with his ring.
Two rings.
I'm not sure it works like that. Wasn't it an instant in the real world before Linden came out?
Hey, do you have to wear the WG to use it? Can you juts hold it in your hand? Maybe you could split it into quarters, twist the quarters into rings, and have 4 mini WG rings!
High Lord Kevin lived almost a 1000 years sustained by earthpower.
Same with the Bloodguard.
Kevin had mastery of the 7 wards - or rather, he created the 7 wards based on his knowledge of earthpower. For all we know they don't even contain all his knowledge. And the new lords can't even master a single one. I'm pretty sure the super old and weak lords in LFB who died during the course of the story were under 100.
The bloodguard had the vow, and it seems to have guaranteed immunity to aging (it carried those like Bannor past Kevin's time and to the end of the new lords). And the vow is broken.
So we have at least one occasion in which Foul could, indeed, attack white gold itself.
But it also succeeded in fully cleansing itself, and I got the feeling from that part of the book that wild magic's power easily sufficed to do so.