I'm much more cautious than John, ha ha, especially regarding the specifics, but I do suspect something significant. I've seen folks post that they've returned from Japan, so I imagine we'll see what's up once the embargo is lifted. I do, however, think if it was something ready for release they'd have done it while everyone was there still, so I am thinking whatever it is probably won't be ready for a while and this is just Panasonic trying to keep people more informed on what they're working on, which is really all most of us Panasonic users have been asking.
I do think an external LIDAR system is better than nothing, but I also am unsure how I feel about having to spend more money to get better auto focus technology. It's probably something I'd pass on as I've made their AF work for most of my uses, but I would kinda also ask myself "what are we doing here?" I mean, external hardware to get better AF? Really?