« on: May 07, 2013, 02:51:51 AM »
You can't give the units in FFT: Arena unique AI for technical reasons, as the units are spawned through the ENTD and all use the "Enemy" AI, which is smarter than the AutoBattle AI. When building teams for FFT: Arena, the old 1.3 AI Tournaments, etc., you "configure" your AI by choosing which abilities to know beforehand - your AI units can't do things they don't know how to do.
But yes, you can basically do everything you want here except make the game a legitimate two-player game. The closest you can do in that regard is to generate an ENTD with the units you want, have one player "host" the game, and have the second player control their team via Teamviewer or something, but most people aren't comfortable doing that so letting the AI handle it is much easier.
Just remember that whatever you end up feeling is good for your project will probably be work. With newer, bigger projects like Journey of the Five, etc., I know a lot of people take "vanilla" mods like 1.3 for granted, but even simpler mods like that require a lot of work, dedication, and motivation to get the things you want done. The ability to come through and finish what you're working on is the most important skill of all, which means you should take things one step at a time - which parts of the things you listed here would be most important to Heroes of Ivalice, and which parts "would be nice" but aren't really 100% important? You want to get those first bits done first, then work on the details later.
Since you're re-working the system from the ground up, I imagine the two things you're going to need the most are gameplay and cutscenes. (As in, the ability to actually make fun, balanced gameplay and the ability to make interesting cutscenes.) These are what you and anyone looking to work with you on this should be looking into first to make sure you can do them well. Maps can be made, sprites can be made, basically anything can be made, but if you can't make things work out on a basic level there's no point in actually making any of those things. So I highly recommend getting acquainted with Event Editing along with the basic gameplay editing tools such as FFTacText, FFTPatcher, etc., learn the basic skills you'll need to make this work for Heroes of Ivalice, and get yourselves some mockups of whatever you want to do going first.
Worry about the rest when you can produce something that can be played, or watched, or whatever suits your needs at Heroes of Ivalice. It doesn't matter that all the sprites and maps are either placeholders or completely unedited, you'll get a lot farther narrowing it down and honing in on those key points first. As long as you're motivated to work and understand what you need to focus on first, though, you should be more than able to learn how to make something to suit your needs.