Round One regular Minato
Round Two Minato gets Kyuubi Mode
We will at least get Shunsui's and Hisagi's. Kubo guaranteed Shunsui's bankai in an interview and implied that it might be strong enough to have taken down Aizen which is why he didn't use in in fake Karakura town because it was too dangerous.
Seriously ? This guy always holds back... I want to see his full power.