Looks like they have 5 releases coming before the end of April. We are still waiting on the release of the two weeks late April Fools chip. Here's the others..

These are concert dates so the release should be close.

April 29th - Coldplay
April 30th - Nine Inch Nails
April 30th - Bon Jovi

There is also a Tenth Anniversary $10 chip to be released. Should be around the 28th as that is when they staging celebrations