Unfortunately no, while Bandai is able to offer specific dates for Japanese stores a few weeks ahead of release for most model kits, the time it takes to ship products to the US is constantly in flux so they can't really give anything specific. A general rule of thumb is that for new releases (like guy) it'll take until around a month later than the Japanese dates for US and international retailers to begin to receive stock; this particular model released on April 11th in Japan so the second week of May is likely the earliest we'd see it stateside (with about a two week margin of error due to current global shipping disruptions), and the first batch can also come across multiple shipments so even if the first one sells out immediately it's reasonable to keep your finger on the metaphorical trigger for a few days or weeks before writing it off entirely.