[Starscream Gaga]

I think if they don't make new footage for a Mighty Morphin' change, then they'll probably use the footage from Episode 2 for the first battle of the show. It is still in the "introducing the powers" phase of Gokaiger, so it gives all the Gokaiger footage of them showing off their toys and they then Gokai Change to Dekaranger, Hurricaneger and then an all Red combo of the last 5 seasons. Seems like a decent variety for a first episode.

I think they'll probably make lots of new Mighty Morphin' footage though. The Zyurangers were used only twice as a whole team in Gokaiger (Episode 11 and 14) and the first time they lost pretty badly and quickly switched to Dynaman. Plus, two of the four or so times they changed into single members of Zyuranger, the footage is unusable for Power Rangers because they were alongside Sentai only characters (Pteraranger in both the finale and Gavan Movie). I'm sure Saban will want to show off the Mighty Morphin more then that. I guess they have to weigh between how stingy they are and how much they want to make early fans happy.