To give 8Dio some praise, the sale has been quite stable and predictable since a few days. But still the most important words are "Looks like".Looks like a prepared piano bundle will be on sale for tomorrow (the 15th), while Insolidus will be coming up on Monday.
I'm currently pretty certain that the gift will remain until the 16th. But will Insolidus be swapped out at the last moment? They've already done it on Day 7...