One way that I've seen Ne manifest itself in IEEs is with unexpected behaviour based on unexpected sentiments between people and other people, objects or situations.
They seem to know about it and warn other people about the possibilities of it. i.e how close friends can hurting you while they think they are helping you or how the could end up hating you, how enemies could immerge from nowhere (once friends), how people can slowly become deluded in odd times, possible range of how people can feel etc.
They also seem to have a understanding of conflicting feelings (this is more of a EII thing) and where they come from and sometimes they might actually know what to do about it (but a lot of the times they don't). They also warn of the possiblities of being in odd unhelpful relationships based on conflicting feelings.
They also have normal Ne skills of weighing up possibilites, covering all the bases, regular stream of insights, preparation (covering all the bases again), coming up with systems that are difficult to break down (usually through unexpected human behaviour)...etc
I might try ILE Ne later.