Unlikely, Itachi should have had Susano'o and Kisame just didn't reveal his arsenal yet.
This was an early point in the manga as to after we've seen everyone was capable of though. That and I doubt Itachi wanted to fight one of Konoha's only good protectors. Konoha was weakened after not having a Hokage, taking out J-man would have left Konoha prone to another attack.