Makes one wonder when we'll see fanart of that version of her.
Most likely not, only a draft version from UmiNeko (now the founder of Hypergryph after parting in good terms with MICA) is seen and it's similar to W at the bottom left, beside SOP2.
It wasn't used in GFL but recycled by giving her Sarkaz qualities instead of headset/earmuffs and turned into W. As for her weapon, most likely MK18 Mod 0 as seen with W's full artworks (Liduke's and Umi's). Only the clothing remains a mystery, either it's similar to W or it's never fully realized.