I don't know, Kengo just seems to make Gen use whatever he has the first go around and by the second he has a plan devised, which usually centers around a new switch. We get to see Fire for the first time in a while, so I'm excited. I really want to see some auxiliary switches used along with the State changing Switches.
Of course, we'll have Kijima around for a little bit longer. So we'll have more chances of the Crab in action. I still want Libra to like, shock him through his shell, some good ol' Horoscope on Horoscope battle like Saeko and Wakana.