I spoke with a fellow at Ernie Ball in July. He told me that the Ernie Ball Music Man Stingray Short Scale 4 string bass (USA model, not Sterling import) is going to be a very limited edition which won't be available until September (he couldn't or wouldn't give me an exact date), and it will only be available at select dealerships. My guess was that it would probably be mega dealers such as Guitar Center,
Sweetwater, Sam Ash for starters. He also said they pre-sold all the orders to dealers at 2020 Winter NAMM within a half hour! He said he couldn't divulge to me which dealerships.

He said there would be two models available: Burst with roasted maple neck/board (I'm guessing this is the one you are referring to), and a sparkly finish edition called "Starry Night" with roasted neck/rosewood board. If you search YouTube you will find a short video of Ernie Ball rep at NAMM 2020 showing these two new short scale basses. Again, these will be available in very limited numbers. He tried to steer me to the "Made by Music Man" Sterling (import model) shorty saying that for the money ($595) they are terrific basses. I have watched all the YT video demos of this model, and I have to admit they do sound great. Of course watching a video gives one no idea how the neck feels/plays. The USA Music Man Stingray short scale "Starry Night" with rosewood board lists for $2099. How do I know this? Read on...!!
As it turns out, today I found out that they are just now being shipped to dealers, and as of today I have a "Starry Night" edition coming!

I was discussing this bass with my local Guitar Center Manager, and as we were speaking he was searching. Lo and behold he was able to find one for me as we spoke! WooHoo!!
Bottom line is if you are wanting one, I suggest you get on it right away. The first run of these USA-made short scale Stingrays which was offered in limited quantities (only 100) last year sold out immediately, according to the rep I spoke with at Ernie Ball. Good luck!