Velvet Dark: the lost spinoff to Nintendo 64's Perfect Dark
A few months before Perfect Dark was completed, Duncan Botwood (Production Designer on GoldenEye and Level Designer on PD), Steve Malpass (Designer on PD) and possibly a few more people from the original team started to work on a new game that would have featured Joanna Dark’s sister: Velvet Dark  https://www.unseen64.net/2016/05/03/velvet-dark-n64-gamecube-cancelled/