This article seems to have gone under the radar...
Back in November, WizzAir revealed the new seats they have the ordered for the new A321XLRs.
It seems they are continuing with the extremely high density seating on the new longer range aircraft and will be light weight, slimline seats, which do not necessarily equate to a comfy flight for these longer flights I assume the A321XLRs will be operating.
Economy Class & Beyond - WizzAir selects Geven’s SuperEco seat for A321 aircraft