The pickit 2 supports everything up to the point when the pickit3 came out, or thereabouts. There is no "continuing support" for the device.
Actually the PICKit2 is still supported and already supports several of the PIC32 Devices. The latest update is PICkit 2 v2.61 and the latest Firmware is PICkit 2 Firmware V2.32. However, the latest Chips are only supported in the Standalone PICKit application, not via MPLab, and there is no guarantee that it will support the new devices in the future.
To be honest, despite its faults, I do recommend the PICKit3 if you are working with any devices released in the past couple of years, just because they have so much more memory and the PICKit3 can program them much faster than the PICKit2. (If you really want speed get the ICD3, I love that tool, but it is a bit expensive for the casual user).
Cheers
Chris