At the moment, AfA_OS used in AmiKit for Windows, Mac, Linux and Raspberry is not compatible with AmigaOS 3.2, unfortunately. That means no AmiKit with AmigaOS 3.2 until the AfA_OS is fixed.
However, AmiKit for Vampire does not use AfA_OS hence the AmigaOS 3.2 will work. In fact, AmiKit installation on Vampire already supports AmigaOS 3.2 (despite it was last tested with AmigaOS 3.2 beta from last summer while the final version might be quite different - so no guarantee there). The real question is whether the Vampire core is ready for AmigaOS 3.2 too, though.