According to rumors from Italy, the Panda Trussardi would be the introduction of the facelifted Panda, with new 1.0ltr GSE-Firefly 70 hp engine, and new big screen Uconnect multimedia unit.
Source : https://www.passioneautoitaliane.com/2019/06/nuova-fiat-panda-trussardi.html
But according to oder sources it will be nothing more then a luxury farewell version of the present pre-facelift model, with the old 1242cc FIRE engine with 69 hp.
Example here: https://www.topgear.com/car-reviews/fiat/panda/12-trussardi-5dr/spec
Introduction of the Trussardi could take place at the IAA Frankfurt, next month.