Ricoh probably realized that the updates they introduced in their latest GRII camera (only Wi-Fi, NFC, upgraded AWB and wireless flash sync) do not justify the $200+ price increase over the previous version. The new Ricoh GR II now costs $696.95, or $100 less than the intro price at B&H and Adorama (Amazon still has the old price).
Interestingly, the price of the previous GR version went up from $579 to $599... I am not sure if this was dictated by Ricoh or by the retailers.