I'm assuming the project you refer to is Jot5, given that it's the one getting the most attention on this site in general.
As is, I think the team's at the point where bringing new blood in would pretty much only be helpful if they were already experienced from the start. The biggest things that need to be done before the rerelease, or any of the following chapters, are all things that require more than just surface knowledge of how to make a vanilla patch.
It's not a project you can just hop on into and learn how to Do Stuff as you go.
The closest person who has a task like that right now is me, I'd say, and there's no end to the amount of stuff I get onto IRC and ask Elric about. Generally, it's just for approval of a proposed change, but even that much means it's time being taken away from his project of the day.
And I've had to wing it in a lot of cases. Something as simple as designing a single skillset - seven abilities for a character - isn't actually that simple, because I need to take the time to look over everything that's been done so far and try to figure out a unique niche for them. Oh, they have multiple distinct weapon styles? Well, guess I have to make more than one unique niche for them. Oh, they use attacks in their game that just don't translate well to FFT? Guess I need to make it up entirely. Oh, there's no way to make this attack formula work unless one's made from scratch? Back to the drawing board.
And there was a lot I had to do. Spell effects, attempts at balance, animations, JP costs, learn priority, descriptions... if I hadn't been dabbling in FFH since 2011, and video game stuff in general for years before that, I would have been completely lost. Basically useless, really. Oh, I could have contributed a few ideas here and there for the characters I was more familiar with, but that's about it.
In fact, there have been more than a few times I've gone and completely erased what others have contributed while working on that task. And there's an absolutely massive amount of stuff I've proposed that's just been shot down right out of the gate. More people working on the same thing isn't necessarily a good thing.
The language barrier is also a big issue. As much as you tried, there were parts of your post that were hard to understand, and that sort of thing can make talking about specific issues a real problem. Even when everyone on the team speaks fluent English, we've still had communication issues more than once in the recent past, and that's just in my experience, this year. One example: I was asking about the chance to inflict status effects on certain abilities, but thanks to my phrasing, nobody realized exactly what I was referring to. Elric had linked me a spreadsheet that talked about Item/Ability Procs, but I didn't look at the word "procs" and think that it included status inflictions as well.
That ended up being two weeks of me thinking the infliction chance was something that, say, Raven had done in the past, but no one now remembered how to make it happen again. Then the topic came up again and Elric was like "wait, wasn't that already covered?" Oops lol
In the end, simply wanting to help doesn't mean that you can. Experience is definitely a requirement.
