User blog comment:Savalric/Feeling bad for Urahara/@comment-24107489-20131114062948/@comment-11051098-20131114144543

Yamamoto decided to break the rules, and he was one of the most strict ones, being the Captain-Commander. Shunsui is much more loose on rules, I think, so it wouldn't be a surprise if he decided to force through a repeal of the exile of Kisuke, and also Yoruichi and Tessai.

All 3 of them are very skilled captain-level Shinigami. 1 highly intelligent researcher, 1 Shunpo/Shunkô/hand-to-hand combat master and 1 highly skilled Kidô practitioner. I doubt Shunsui would want to keep them exiled if he can change that, they're too valuable for the Gotei 13 with their skills.

The best reason to take them back is the fact that Yamamoto is dead and Unohana is implied to be dead, and the 4th and 8th Divisions are left open. There's a good chance that more captains can die in this war, and Kisuke, Yoruichi, Tessai and Love could all be taken in to fill vacant positions. And Hachi is very skilled in Kidô, if he has the same level of skill with healing Kidô, he could perhaps take on the 4th Division captain position.