The papers from the "Hekhalot Literature in Context" conference, which was held at Princeton a couple of years ago, are going to be published this spring by Mohr Siebeck. I have a paper in this volume, "Women and Gender in the Hekhalot Literature."Follow the links for details.
Hekhalot Literature in Context: Between Byzantium and Babylonia
Edited by Ra'anan Boustan, Martha Himmelfarb and Peter Schäfer