I hope not. I noticed only 5 zip types on the Sandisk website and noticed the 4GB were being discontinued on the amazon site.
Of all the three clips available (+,zip,sport) I find the zip to be the best of the three in terms of features. Like the alphabet browsing and the podcast works really well with only one minor bug and of the three models the zip has the best podcast experience for me. Also like the RDS which is not available in the + model.
Like the album art as well.
I know the sport and zip look similar (although the sport looks better but has less inside) but would hope the zip they would at least keep the 8GB model.