I’d be wary of having Din see the mythosaur, because that’s likely intended to be specific to Bo Katan and the plot might depend on it later.
But more dialogue elsewhere could be very useful, especially to help smooth out changes where we’ve got Din going somewhere he didn’t originally, or to justify his new actions.
Already I can imagine something like “Better go pick up the new ship Peli has for me” in the current book 5.