You need buyers and I won't be one of them.
The Classic cards are not condition sensitive for the most part. The scarcity of the 89 could make it more difficult for sure to find an abundance of higher grade cards but the lack of interest in this set will hold it back and so will the size.
I am a big fan of the Series II OPC. These cards are very cheap for the simple reason of lack of interest. Just because something is rare or tough to find in strong condition, it doesn't guarantee high prices.
I do not doubt that the Ultimate Warrior and The Rockers cards from this set in high grade could bring a few bucks but the set will never gain a tremendous following to warrant high prices is my belief.
Time will tell.