i made this one awhile back: no new skills but it improves the mischief skills Game Pack idea! Hatestruck
a new world isn't necessary in my opinion but it's the complete opposite of Lovestruck
i hope the teams make notes on this for a more expanded mischief skills
as for the instrument skills (guitar, piano, violin etc) forming a music pack might come out later this year with hopefully new instruments and more expanded instrument skills that already exist and even forming a team
as for the programming skills: there was a survey and one of them is based on technology (Cyberpunk) so there's hope for a more programming skill options