https://wccftech.com/xbox-series-x-originally-august-xbox-series-x-different-form-factor/

We’re moving into mid-summer, and yet we still don’t know when the Xbox Series X will launch and the heavily-rumored Xbox Series S (codenamed Lockhart) hasn’t even been revealed yet. We’ll likely have to wait a while for more information, perhaps until August’s Xbox event, but in the meantime, reliable Microsoft insider Brad Sams has some rather interesting information about the company’s ever-shirting console release plans.

According to Sams, Microsoft’s original idea, before the world fell of its axis this year, was to launch the Xbox Series X in August. Meanwhile, the Xbox Series S would have been released a couple months later in October. So, it seems the plan was always to hold back on the Xbox Series S in order to give the XSX some uncontested time in the spotlight.