i dont seem other way than that to put fillers in the anime!!! a thing they should do is put the cover storys into anime!! and is good to see the characters in the feudal era or the frankyrobot vs mechaluffy xDThat's a good idea. An entire episode of amusement park adventures. This way fillers can take place and manga can gain some distance.
Specials... like those feudal era episodes? I personally wouldn't have anything against them. Luffy-oyabun. And Robin-chan in kimono.
Supernovas and Shakky making their appearances soon are really good news.