Sadly no, not really. Maybe if the rest of the game was finished but like this it's just a diversion of valuable manpower. You're practically taking it away from important parts (improvement of gameplay) to non-relevant stuff (visual eyecandy).
Besides, it's not even certain that customisable outfits will be better than well-made but non-customisable skins. They certainly are more fun if made well but there's no guarantee we accomplish that ;)

If someone would do this on his own, I don't think many would say no but puttin it on the project's agenda is another thing. You'll certainly agree, it's worth more to improve gameplay fun than visual fun (at first glance; hopefully there's plenty of time to improve visuals once the game reached a certain level of completeness).