New Gilnean Trading Post Transmogs
While these new gilnean ensembles don't all have set prices, at least one of them: Ensemble: Gilneas Loyalist Streetwear, is valued at 5 Trader's Tender, with the others most likely sharing a similar price.
New Gilnean Transmog Sets in PTR Trading Post
The 12.0.5 PTR Trading Post has some new additions, including multiple recolors of a new Gilnean armor set! The sets feature a more traditional Gilnean attire, closer to the average resident's style. It does share a lot of similarities to the Gilnean Noble Suit, which is a reward from the Reclaiming Gilneas questline.
