Well, I like a little challenge, so here goes.
1. What is this "Heresy War" that a book in Vane in Lunar 2 mentions Dyne being the hero of? Anyone have any information on this?
Someone with better recollection of the remake books would have to validate that. The main 'hero' thing that Dyne is known for is either (a) helping to save the world from an evil demigod with the other three heroes, and then "losing his life" when he and Ghaleon went to stop the insane Black Dragon, or (b) saving the world and saving Althena, reborn in human form. It depends on if you prefer the backstory given by the remake SSS or the original TSS.
2. I've looked at the timeline on the site, but it's a little vague as to the ages of Dyne, Lemia, and Mel. Also, how old is Tempest?
There's a little bit of guessing involved there. It's been 15 years since their adventure when we begin TSS, and all of them were rather young--in their early 20s, at best. Ghaleon and Dyne began adventuring together and met Lemia when they visited Vane; they appeared about 20 at that time, give or take (Ghaleon, really, would've been over 100 years old).
The visit to Vane and then some is described in the Vane manga. We have a translation o fit here:
http://www.lunar-net.com/manga/vane.phpMel might be a little older. He and Dyne
did have that grand seven-day battle on the high seas when Mel was still a pirate, so Mel being younger than 20 at that time is unlikely.
Given that, I'd have to wager that Dyne and Lemia are in their late 30s or early 40s, and Mel is probably in his early to mid 40s. Tempest, no clue; if I had to guess I'd say early 20s.
3. Related to the above, I'd like to know how old Dyne was when he set out on his adventures and how long it took between then and giving up his powers.
He was adventuring with Ghaleon pretty early on. I'd wager 17-18 for a conservative estimate, though it might be earlier. Mid-20s is probably when the entire deal with the rebirth of Althena took place.
4. I've heard that some characters were supposed to have last names? Anyone know what they were?
Most of them do.
Alex Noah
Luna Noah (adoptive)
Laike Bogard
Nash Lumach
Jessica de Alkirk
Mel de Alkirk
Mia Ausa
Lemia Ausa
Alys Brangwin
Phacia Rampling (possible pseudonym)
5. Related to that, are the names of any of the dragons besides Quark, Nall, and Ruby known? And/or the names of Mel's late wife and Alex's mother? Any minor characters relating to this period, really.
Other dragon names are given in the remakes, I believe. I don't recall them off the top of my head, but others might.
Mel's late wife, I don't recall a name being given.
Alex's mother's name is Saria (I think they translated it as Thalia in the GBA Lunar: Legend).
6. Is it known at all how Dyne came to know of Althena's desire for the people to not be dependant on her, and volunteered to give up his power as well?
That much is left open to speculation... I think it relied a lot on Dyne's own beliefs, and how they meshed with what Althena truly wanted. Hence why Dyne was Dragonmaster, not Ghaleon.
7. Is there any information at all about the families of Nash and Kyle? Additionally, is Nash a native of Vane, or did he come to the city as a child/young man and pass through the Cave of Trials?
Kyle's family is never mentioned. His background makes him out to be a lifelong bandit or brigand. Nash, meanwhile, did have to go through the Cave of Trial (mentions so in TSS, I believe), but that doesn't necessarily mean he's
not a native of Vane.
Kyle's backstory is mentioned a little in the SSS novel, vol. 3. We have a brief summary up here:
http://www.lunar-net.com/novels/sss3.php8. Lastly, any information at all that pertains to this period/these characters that I've neglected to ask for would be greatly appreciated.
Well, answers open up more questions, and I still wasn't able to get around to all of them here. Maybe other folks will. KF