In an exclusive interview with the Chinese website IT168.com, Panasonic confirmed its plans to release an updated model (or models?) to the DMC-LX2 this autumn. The interview, in Chinese, is here. Unfortunately I do not speak Chinese, so I had to rely on the Google translation. Here is an excerpt from the translated interview:

Answer: LX2 is a very successful product (laughter), Matsushita concerned friends all know, every year, we will release two new products on time, is a spring in the March-April, mainly published consumer and household-level Cameras and camcorders, and the other is the Jiushi Yue in the autumn, before and after National Day, will release high-end cameras and camera products. LX2 has launched such a long time, the market performance is also very good, we began immediately after the launch of the new models of research and development, the current can say is that the new models have basically completed in the autumn of this year and will meet you.

The short interview also contains some discussion of sensor type considerations and Panasonic's role in the DSLR market.