That joker is a pretty hard one to type. On the one hand he defines himself as not being a planner, but on the other hand he successfully carries out elaborate schemes suggestive of considerable Ni.
Ne s are good planners too.
The difference between an Ni planner and Ne planner is from my personal experience
Ni - Makes plans (and contingency plans, which depends on how much he/she uses Ni) and sticks to them. If it doesn't work they move to plan B (INTJ).
But the downside to this is they are not very flexible on their ideas. Yes if they get a better Idea they would change the first, but not
QUICKLY ENOUGH.
This is why xNTJs appear to be rigid. And they are. Not without reason. They know what they are doing is right and they know what they are doing will work. They simply get annoyed when some idiot stands in their way/ or if there are delays.
Ne -
Has a goal in his/her mind. Knows exactly what they (ENTPs) want. But they do not tend to plan as much as Ni users.
But the plus side to this is, since they use Ne they can see possibilities everywhere. If plan A got screwed up they'll
SEE a plan B. And plan B is always better than the plan A.
This is one reason why ENTPs look pretty manipulative. They have something in their heads which
don't need to express like the xNTJs do.
xNTJs need to clarify (Te) things to others and keep them informed (Te), cus they don't want things to go wrong because of misunderstandings.
xNTJs are more
PLAN oriented.
xNTPs are more
GOAL oriented. Especially ENTPs.
THIS IS WHY xNTJs GET SO PISSED OFF WHEN THEIR PLANS FAIL.
BUT ENTPs DON'T GET PISSED WHEN THEIR PLANS FAIL.
WHY?
A plan could fail. But just because a plan fails it does not mean that the goal failed. Goals Don't fail. Plans do.
The Joker does not have any plans (Te).
But he does Have goals (Ti). And his Ne comes up with a plan at the right moment.
So the Joker was telling the truth.
He does not have any plans.
He just comes up with them at the last moment by using his Ne. Cus Ne connects the dots to give what Ti wants to.
He is an ENTP.
And not just an ENTP.
He is what any ENTP would be if not for social pressure and THE LAW.