Oh well, I guess I'll add some light descriptions of my characters, how I'd want them in the story, or how much they could be in or limited to the story, and stuff just for kicks...In case...although it should be noted that I've neither wrote about my alt Glenn or Flea yet...
Gil
Magus returned to 12000BC, searched the ruins of Zeal & the Ocean Palace for a year, managed a makeshift Magical portal that sent him to a whakky future where he learned about a Time Egg...Upon traveling to get this Time Egg in 1020AD, part of his darker side was semi-split apart from him, mostly unbeknownst to Gil. He then rescued a slightly older Marcy, who followed him. After they got the Time Egg, they used it, but being unfinished and activated as it was (it was willy nilly up to the very end), it sent them to an alternate dimension year 1000 (winter).
I thought this dimension could easily be one of the ZEALian messed dimensions. A few of the changes include: Crono's premature death when he was very young, Lara's death, Magus's death on Denadoro, and Flea being not only just a female, but also her strong emotional bond to the alt Magus who died on Denadoro.
Gil also meets Elle, who is an alt. Lucca. He then obtains the alt. Nadia's Pendant and upon going to the alt. 600, they join Glenn to find Flea, who eventually helps Gil semi-create a Gate Key.
He's become fairly introspective through his new journeys (which can be attibuted to the darker half being split) and sees many things in dreams.
Instead of a Scythe, he now uses two sickles, and he no longer has his cape (he buried his mother in it, how sweet, right? har har).
Basically, if he's allowed, I'd want him locked up. If he were to plan an escape with Radical_Dreamer's character, then he would be recaptured, or simply wouldn't make it out...Or perhaps he would make it out, but play no larger part in the ZEAL story...But since he'd have a Pendant he would really no longer need, I thought it would be cool for him to be somehow connected to RD's character who needs Dreamstone...But then again, my Glenn would also have some Dreamstone from his Masamune...
Marcy
She was seperated from her brother when she was young. Marcy uses a pair of spiked Denadorite gloves. She is very passionate and would die fighting for her quest for her brother, which she has been on since she was very young. Her days of traveling have left her a little sour at the world, but very tough. She looks up to Gil because he saved her, he's powerful, and because their goals are so similar. She feels that by following him, she too will find what she's looking for. She also has come to be physically attracted to him, but she doesn't exactly know it until Elle comes along...
Elle Ashtear
From the alt 1000AD. She's very dark, especially compared to her Keystone half. She was actually in the process of slitting her wrists w/Taban's razor before Gil & Marcy showed up. This is all part of Crono's not being there for her (he died very young). Having no friends, she became very kind of introverted. Her mother died, and she blames her father Taban (who also blames himself) and is distrustful of many people. She is haunted by dreams of people, creatures, demons, and artifacts of things and a vast redness (many things from Chrono Trigger). She is an artist and a self-taught katana-wielder with a unique style of fluid power. She often awakes from dreams finishing a stroke on a painting. She follows Gil because he is one of the things she painted: maou. She also followed him because she was forced, and because she trusts him blindly because of her dreams. She also is physically attracted to him, and she butts heads with Marcy, although Marcy always masks it as something else about Elle she doesn't like. Elle knows better. Neither of them really has any real chance at Gil.
If Marcy & Elle came into the story, I don't think Gil would allow them to come with him to ZEAL. I think he'd make them wait in a timeline somewhere...Probably in where-ever exactly in post-CC Toma-Ideal Timeline people are coming from...Or something...Maybe they'd just stay in the End of Time...They wouldn't do anything against ZEAL unless he said so...If Gil came back, or they saw him in another timeline, they would go to him, and out of the ZEAL fanfic.
Glenn
From alt. 600AD. He not only survived the confrontation on Denadoro (and was not turned into a frog at all), but came away from it with not just a wicked blinding slash across his eyes, but also with the defeat of Magus & Ozzie. Although there were losses (aside from his sight): Cyrus is dead, and he blames himself, the Masamune was split in two at the blade. Now the Masamune is closer to dagger in size, with a diagonal blade. He sharpened the blade, and has strapped the broken off tip to his left wrist.
Although he lost his sight, he gained a kind of sixth sense which allows him to see spiritual projections of people and things. In or because of these projections, he has come to find a kind of god. He follows Gil because he believes it is his calling to do so as he has already killed the man, although he knows Gil is not the same, he senses the man he killed somewhere beyond Gil (the detached darker side).
If Glenn were to find out about ZEAL, he would stand up to them because he would think that is why he followed Gil, to stop ZEAL. But even under other circumstances (ie w/o Gil being used) he would also step up to the plate...
Flea
From alt. 600AD. This Flea was always a woman. She also had a very emotional relationship with the dead (in the alt. timeline) Magus. I haven't worked her character much, but I think she would be a very sarcastic character, very tricky though. She follows Gil because she sees it as her fault Magus died at Denadoro. Also because she thinks she can love Gil, which isn't necessarilly untrue, but I don't think Gil would be so easily distracted.
Flea would follow Gil to ZEAL even if he didn't want her/told her not to. I would also LOVE IT if she died in ZEAL, possibly to protect Gil even, would be great. Or perhaps just trying to escape...Flea dying would be good.
So, basically, I could see Gil, Marcy, Elle, & Flea taking really bit-parts in this, and Glenn could really be a hero. I wouldn't want the others to do much. I don't see my Gil (or any non alt. Magus) as being a hero out to do good, he's a very selfish creature in a way. He would care for ZEAL for his own ends only.