For me, it was still the day after tomorrow at noon, now it's 6-8 days again. What's going on?

Exactly the same problem. I ordered it about 5 days ago, expecting it to arrive on Thursday. On Thursday morning it still said: Expected today. In the afternoon it suddenly said 6-8 days. On Steelseries itself it is promised that it will arrive in 3-4 days. I will cancel it here and order it directly there.

Postponed again today by a week, now for the second time.
I have now cancelled the order and ordered directly from Steelseries, let's see how quickly they can deliver.

According to their homepage, the product should be shipped today.