here is the current time in the Naruto story.

4am- two chunins find Sakura.
Tsunde orders Shikamaru to gather people around in half an hour.
the group leaves.


at episode 200 and something, there's a mentioning by Tayuya and Sakon that it's dusk already, and that half a day has passed since the begnining of the mission.

which means, it's about 7 PM, so Shino (or a new improved female) shouldn't be able to come sudddenly.

besides, shino should have died after his battle with Kankaru...