Do you know Goldencup, I was starting to think I dreamed all these flavours too! Yes, I do remember blackcurrant, pineapple, orange and raspberry Nesquik and the Mint Choc one was my favourite too! The Toffee Choc one came out a few years ago but these earlier flavours were out in the 70s.
I would love to see them back. Do you rmember the song
"mix a glass of Nesquik, Nesquik's fun!!"