Actually, Westown opened on 12/16/83 – you can see a very small preview ad (under Waukesha) in this 12/11/83 copy (page 90) of the Milwaukee Journal: View link
Unfortunately, they don’t have the 12/16/83 issue which probably contains a more significant ad.
And Westown went from being called “Westown 4” to “Westown 6” the weekend of 5/25/84-5/27/84…
Actually, Westown opened on 12/16/83 – you can see a very small preview ad (under Waukesha) in this 12/11/83 copy (page 90) of the Milwaukee Journal: View link
Unfortunately, they don’t have the 12/16/83 issue which probably contains a more significant ad.