Is it a reasonable estimate that this will arrive before/by April 28th? That's when the Dragon's Maze pre-release happens for me and I'd definitely want to go prepared, but if not that's fine too.
GeoooWe'll put the order in to the distributor on April 9th after the groupbuy ends. Generally they ship everything to us withing 2-3 days of our order, and then our fulfillment center repackages everything and sends it back out within 48 hours. For domestic orders, I'd expect you'll get yours by April 16th or so. For international orders, as always, we have no control over how long customs/inspections can/may take.
There's some risk that the manufacturer/distributor doesn't have it in stock when we call them, but we've been given every indication with this groupbuy that the playmats are on hand (albeit somewhat limited).