are they replacing anybody or is the original 5 plus shino and lee. either way i think they would make a difference especially shino and his bugs.
No one is getting replaced. They are added.
Rearranging the Sound 4 match-ups.
Lee vs Jiboro - Lee stomps with Lotus
Shino vs Kidomaru - Parasitic Insects grant an edge against Kido's lmong distance attacks.
Neji vs Sakon and Ukon - Neji's gentle fist destroys chakra and he'd likely be able to repel Ukon, should they try to merge inside him.
That leaves Tatuya alone with the Sasuke barrel, against Naruto, Shikamaru, Kiba and Chouji.
Sasuke successfully captured.
Too bad they nerfed Shino. But I agree with the matchups above, Lee could had destroyed both Jirobo or Sakon/Ukon as their taijutsu lacks in comparison. Shino could do any of them as well, plus if I recall correctly (don't know if this is a manga feat or anime), but his kikaichu are immune to genjutsu due to how their brains are, so yeah, given the conditions, shino could mop the floor with any of them.
The more the marrier. Would be fun to see Sasuke vs lee rematch
Naw... When uchina face taijutsu specialist they usually end up getting split in half having their chest blown off multiple times or getting a horrible ass whooping
Rock Lee and Gai sensei are special. Sasuke was able to knock naruto around pretty easily