Forthcoming from Grand Piano (https://www.prestomusic.com/classical/products/9371727--louise-farrenc-complete-piano-works-vol-1-etudes).
Vol.1: Etudes, includes world premiere recordings.
Very interesting. But 2 disks devoted entirely to etudes might be too much to take in all at once. Something to dip into perhaps - provided always that the performances are good enough.