@Cyan:
…I thought it was only two episodes of filler.
well, I don't understand japanese very well (ie. not at all), but just from the images shown on the "next episode" recap, we only saw Nami and Franky….
So, unless Chopper and Usopp needed not be shown to be in the next episode, I'll be under the impression that it'll be 2 SHs per episode, marking 4 episodes in total (kind of like the last filler eps we got when Boa and Luffy were on their way to ID)...
Which would make total sense, especially if the anime needs more filler padding so as to not catch up to the manga, especially since we know the war has no time for filler...
...unless, of course, we get to actually see some of those fights in the WAR be fleshed out more in the anime. I'd totally be digging that!