Orban knows it's not going to happen.
The question then - I suppose - is why is Orban doing any of this at all?
Why have your senior military leadership give speeches to the rank and file about shifting away from a "peace stance"?
Why recruit ethnic Hungarian spies in Ukraine, to gauge the sentiments of the local population regarding a potential invasion?
Why do any of this, if it's such a pipe dream?
Orban won the last elections most convincingly. As he said - his victory was "so big", that you could see it "from the moon". He doens't need to play any "war cards" to mobilize the electorate. He is secure in his current position, for at least a few more years.
I think it would be a mistake to dismiss this as some kind of Hungarian theatrics. These people are known for making suicidal decisions, and they almost always end disastrously for them. It hasn't stopped them in the past from making new attempts.