There are now a dozen new mystery SKUs for Switch that have popped up in GameStop’s internal database. Each one is simply labeled as “Available SKU”, so there is actual data on what each product might be.
Here’s a snapshot taken from the database:
These listings are only in GameStop’s database, so they can’t be found through the retailer’s website or pre-ordered there. What is interesting though is that instances like this occur shortly before a Nintendo Direct. Could we be seeing one soon?