There is one important point here : )
A Japanese decision invalidating the Japanese patent does not, by itself, kill equivalent patents in the US, Europe or anywhere else (even if they belong to the same patent family). Patent rights are territorial and each national right has, legally speaking, its own existence within its own jurisdiction.
So no, compressed RAW has not suddenly become free for everyone everywhere : )
What is interesting is something else: if the claims are substantially equivalent (and that is obviously the important bit), the reasoning used in Japan may well become useful ammunition in other validity challenges.
That is why, for me, the really interesting question is what Panasonic (or anyone else) does next.
If equivalent RED claims start falling elsewhere too (particularly in the US), then yes, we may be looking at a very different landscape.
- E. :- )