I was thinking, Wing Form might appear again. Since Sieg went back to the past, then technically he will exist in 2007 once more. So, when Sieg was disappearing, there already was another Sieg in 2007. Thus, one day Ryotaro might reunite with Sieg to kick some Imagin butt. Do you guys get where I'm coming from? Looking at Wing Form, I really hope he does appear again, especially since we never got to see his Hissatsu Waza. I magine it must be really cool though. And extremely powerful. He knocked this episode's Imagin down in one hit despite being in a weakened state. Imagine his full strength.
...Yes