The New Panasonic
We've got Panasonic experts from the company here showing the device and I suspect there will be a variety of Panasonic micro 4/3 lenses to try out as well.
One thing needs to be carefully assessed - the ergonomics of the body. The GX7 was perfect for people with middle-sized hands. It is anticipated that the GX8 will build on from this - by all means try it to see if it fits - and if it does consider whether or not this would be the perfect travelling camera system for you.