[quote=Lugubrious]
Random thought: I'm sure that neither Sheik nor Impa would be very amiable to Midna and Zant if they come into contact, but would they Initiate combat with them? I don't mean out-of-the-blue aggression, since that would be out of character (probably), but perhaps for a 'duel for our lady's honor' sort of thing.
[/quote]

Right now Sheik just wants to meet Midna and ask her some questions in a none violent way. He wants to understand why she wants to take the throne.

Only if or when he determines she's a threat would he attack. But negotiations happen first.