It's just Etzel trying to save his old obession that Tuon and Rand will ally very early and Rand will send the Senchan to save the Tower.
His idea that Rand meant to hand Semirhage down to Tuon has of course not panned out, so now he's conceived this new one, not much better at all IMO, that Tuon would be swayed Rand's side by being given a shiny sword.
Surprising he's not found a way to tie the sword to Slayer and Asmodean's murder, yet 
IMO, my ideas are at least as valid as your idea that Tuon will leave the south with all her troops to invade the Two Rivers, or some such nonsense..

They are at least based on some Prophecies.
Besides, it isn't said that Rand won't yet hand over Semirhage to the Seanchan, if he got his needed informations from her and if the Seanchan finally demand to prosecute Semirhage for what she did to the Imperial Family.
For that matter, we also don't know yet if Rand won't eventually agree to torture Semirhage, if something dire happens, e.g. Bashere's death or Moridin messing with Rand via the link (similarly to Perrin's torture situation in CoT). Jason indicated that there are dark things, especially concerning Rand.
As said, the sword could become an additional gift during the talks with the Seanchan or maybe it's linked to a Seanchan Prophecy.
The theory that it's Guaire Amalasan's sword doesn't seem to have any plot relevance and is therefore quite unlikely, irrespective of the other problems, especially why Rand recognizes it and why the people who gave it to Rand are "completely unaware of what they were holding" (TGS, ch.1), if the Dragon scabbard would point to a False Dragon.
Plot relevance of the sword
- 06/09/2009 04:25:12 PM
1596 Views
Great
- 06/09/2009 08:01:07 PM
1078 Views
Re: Great
- 07/09/2009 04:02:53 AM
991 Views
Re: Great
- 07/09/2009 11:53:52 PM
1019 Views
Re: Great
- 08/09/2009 10:57:13 PM
1198 Views
I see that differently
- 09/09/2009 02:15:45 AM
1013 Views
Re: I see that differently
- 09/09/2009 05:24:55 PM
925 Views
Well...
- 09/09/2009 03:59:27 PM
1064 Views
Nice
- 07/09/2009 02:46:36 AM
979 Views
Re: Nice
- 07/09/2009 04:00:53 AM
999 Views
? Yes, I am aware of this
- 07/09/2009 04:24:03 AM
984 Views
Re: ? Yes, I am aware of this
- 07/09/2009 03:36:45 PM
960 Views
I'd favor it being Justice, they probably tell us in the prologue
- 09/09/2009 05:46:37 PM
980 Views
My early theory: High Lord Turak
- 08/09/2009 08:11:24 PM
1513 Views
All good points but a couple of puzzlers
- 09/09/2009 02:06:59 AM
1017 Views
see above for part
- 09/09/2009 02:20:19 AM
974 Views
OK, I see what you are getting at, but I'm not sure I buy it
- 09/09/2009 12:14:10 PM
956 Views
Re: OK, I see what you are getting at, but I'm not sure I buy it
- 09/09/2009 02:59:30 PM
975 Views
No, He's giving me way more than I want.
- 09/09/2009 05:27:31 PM
898 Views
Additionally, re: Why the Dragons?
- 09/09/2009 03:08:27 PM
991 Views
Re: My early theory: High Lord Turak
- 09/09/2009 05:29:11 PM
1001 Views
