Favreau and Filoni are involved in this
According to Star Wars Theory on Youtube. The IMDB page of this series does not mention them, but Star Wars Theory guy said he talked to people working on the show, and they are involved.
Did not expand on their level of involvement, but hopefully they can deliver with this show. Boba Fett was terrible, but hopefully they will have more respect for especially the 2 legendary characters in this show.