While it sucks to lose $2-3K of value, I'm hoping there is no reason for me to re-purchase the set, like improved face paint, or sculpt updates. Also, I wonder if they'll offer the same bundles again, or just release individual figures this time?
The man said "reissue"... so that sounds to me like the old molds used again.
There may be slight variations due to new materials or different paint apps, but I wouldn't expect major redos. As I said, I'm anticipating being able to still use my 6 year old Venkman with the new guys.