Assuming that this show follows the plot of OG2 semi-closely, and assuming Irm doesn't show up (since he is technically supposed to already be there but isn't), we won't see any Super Robot types for at least several episodes. I guess Lamia's Angelg counts as a Super Robot, but it hasn't really had it do anything so far.

But then again, they did have the Thrudgelmir in epsiode 1 for some reason, and the Chokujin mechs killing stuff in episode 2, so who knows when the next "Super Robot appears way earlier than it did in the game" event will happen.