here are my guesses.

seeing how there's 2 more episodes of the star arc and then a filler epi on kiba, i think the epi after kiba will have some new animations in the intro and ed portion of the anime and start the kakashi gaiden. my guess is that the kiba part will be another 1 epi kinda filler (sorta like the rich spoiled brat epi) but then towards the end it'll have a scene that connects to the kakashi gaiden. then we'll probably get like 2~3 episodes of kakashi gaiden then finally naruto part 2.

but in regards to the star arc, it'll have to end in one of these ways

- hoshikage dies from using the star too much
- naruto goes berserk and turns into kyubi and beats up hoshikage
- naruto does kage bunshin + rasengan combo
- summoning battle (naruto summons gamabunta and the hoshikage uses a big version of the mujaku whatever jutsu with the help of the star)
- sumaru's mother comes to protect sumaru from hoshikage and ends up dying (they said that they can't use that mujyaku move too much because it kills them or something)

in whatever case, by june we will most likely (hopefully) be watching "good" naruto anime episodes...