One thing I always adored about the Perez run was that he had lots of Diana in the classic outfit but also managed to give her a full on wardrobe that had a lot of variety but more often than not still evoked the the aesthetic of the costume. Some heroes, I think that added bells and whistles seem superfluous. I don't think Flash, GL, Superman, Spidey or many others need to always have these variant looks, or at least I think it's a bit of a stretch to justify it in story. Wonder Woman, Batman, Aquaman, Cap, Iron Man? Those I would actually find it strange if they DIDN'T have a wide variety of outfits.
Which is why I really want a sequel if it happens to be in the modern day and I hope we get to see all sorts of cool costumes (and civilian clothing) on Diana. I don't care how cheesy some think of them being, I would have such a smile if the sequel or a JL sequel had anything from the aquatic outfit from the Carter show to the Kingdom Come golden eagle armor.