I will provide my POV about this... I already read the topic.
Have in mind that this may feel some people unconfortable, but it's not meant to hurt but to point out some possible problems in the future.
1.- If you are going to make a project "A-la-VIPPER" with many UF users, DO NOT MAKE HER A FORUM MASCOT. Reason: Utaforum is open to OS and JP community, and as someone already said, Utane Uta is the most neutral character so far. UTAUONLINE do not have this "Neutrality" feel in their site... when I first knew about this site I saw Uotan in the banner.... then I saw the "2011 UTAUs" which were pretty much OS ones... those things seriously discouraged me to join the so called site because I didnt feel a sense of neutrality, but mostly support to those UTAULOIDS.
2.- Avoid the traps, at all cost. Traps are overused inside the OS scene, and some of them are pretty much result of a lot of girls who failed at voiceacting boys and decided to make them traps to feel "success"; yet some of them are pretty well done (Harmon-E, boy to girl) or arrived before the "Trap bandwagon" appeared (Ryone Yami).
3.- Look for a male voicer is what I suggest. I have seen a lot of people wanting more male voices that sound manly, since we already have a lot of high pitched ones.
4.- If you are making a big project, try to make it serious. As some of you commented, we don't need newcommers for this... We need people who already know the formats, phonetics, work, ETHICS, etc. Getting an uttaite (YT) would be a nice idea if the person have a HQ microphone and possibly a soundbooth to exploit the maximum HQ possible.
5.- We need post-production work on the samples; not just raw ones directly from microphone. The most worked the wavs, the better.
6.- Provide a romaji reclist with kana alias in case of a CV, or with double-encoding in case of a VCV. This will let any kind of user and locale to work with it.
7.- After postproduction, we should have a Mac users who can convert the samples to MAC so UTAU-Synth could be able to use it too. SoundWave team (Ritsu's team) have developed VBs for both UTAU and UTAU-synth.
8.- Design needs to be original and try to avoid all the UTAU clichés so far: Cryptonloid look, triangle-pattern belts, Black/Red scheme (so OVERUSED), etc. As well... unlike the VOCATONE team, people involved in this project should revise that the design do not look in any way to a UTAULOID that already exists or even one of them. That will cause serious critics.
By this I dont say "Let's make him/her a hipster" but have in mind some stuff is already boring to a lot of users. What I disliked of the VO designs is that, some of them were clichés (Emo, Dragon/KeineRon rip, somethingelseIdontremembernow)
9.- People who make the oto must be methodic and trying to get the most smoothness of the thecnique used (CV, CV-VV-VC, VCV, etc). So it can stand out.
10.- Should take a lot of time and planning. Do not just "Ohh I am gonna make an utau today and release it tomorrow". The most time you take, the better. Most of us are experienced on this software/community and we should be able to have a much better product than the people at VO who were newbies on the topic (yeah, newbies because 80% of their UTAU forum is related to APPLocale issues).
Hope my best... and if someone have a feedback of my points I would love to see what can be gatheter and what can work for so called project.