Well since they already had full-size Play Arts Kai for Rufus, Vincent, and Yuffie it was only a matter of time before the rest of the VII cast started coming out. I think it's not a matter of if, but when.
That said, while I absolutely adore Play Arts Kai figures and I think they're some of the most flexible, posable designs on the market (with insane, excellent detail to boot), weird horseshit jobs like that Yuffie figure prevent me from buying them ever on a frequent basis besides as a collaborative birthday gift.
"Horseshit" job is harsh, I suppose - and almost every preview sculpt that's come out looks absolutely impeccable - but sometimes the manufacturers make the strangest decisions with the paint and production has churned out some very, very odd-looking figures. Skin tones have often been a common point of criticism (re: the "orange face") - the Street Fighter ones had the same problem, and on the Mass Effect ones some of the skin tones came out like someone had smeared dirt over the figure during the paint process.
In general, quality varies quite a bit (and plenty of anecdotes can be found of missing paint), especially for a poseable at the price points that Square Enix sell them at (though many figurines often have an asking price far above PAKs). Still, when the stars align on the QC aspect, the majority of purchases I've made have been nothing but excellent on all fronts.