Not long after KV 63 was announced, was KV 64 made public. It was actually discovered by ground penetrating radar way back in the Fall of 2000, but the archaeologist who initially found the anomaly was accused of smuggling antiquities and forbidden from further work in the Valley of the Kings.
He was later found innocent, but any work on the anomaly he found came to a halt. It's been resumed now by the Egyptologist who worked on KV 63. There's been concern raised that with the sudden onset of discoveries within the same area, nothing should be rushed. It's an exciting time for sure, but if the excavation isn't handled with great care, valuable information could be lost.
Of course, everyone wants to know if KV 64 is actually a tomb or just another storehouse like KV 63, so expectations are high. If it's a tomb, it's probably intact and is probably from the 18th Dynasty, the Amarna period. These are exciting times.