Pretty new costume bits are being previewed here. Nice, particularly (for folks who like the “civilian” look) the jacket (will we get back logos, too?). The question, of course, is whether we’ll be able to respec costumes with the new features or not (I suspect not, just logistically), but it’s good stuff nonetheless.
You haven’t visited the Icon store, so I’ll tell you that you’ll almost certainly be able to add the new stuff into your existing costumes with no problem.
Influence-outlay, but no problem.
(Excepting only those elements that they intend to be ‘restricted’, like auras and capes.)
More fun screen shots of new character design options (both clothing and sliders for various body parts) here.