Don't mean to muddle the waters here but... I do agree more generally with sitbone 's original assessment.
(i think i may have given too much emphasis on facial muscle contractions, and not enough on energy.) (it's admittedly so much harder to quantify energy but i'll give it a go.)
So I don't see her being an Ne-lead very easily because (face aside) she lacks: -- Ne's quality of 'suspended animation' (it's a cartoony sort of levity/buoyancy) -- The 'sparkle' in Ne's eyes; which carry some curiosity and also naivete. She doesn't have that signal
Instead she has the signals of: -- Se/Ni 'gravity', which gives a sinking certainty to the posture and psyche -- lack of buoyancy, although there's a kind of dynamic energy to her; it's not 'buoyant'
i see her as a TiSe, somewhat similar to Kristen Stewart. There is some eye toggling but her mind itself isn't divergent It stays on the forward stream related to the thought at hand. Rather than branching and branching with naive curiosity.
There's a lot of receding energy in her. Her posture feels withdrawn. Although I could be wrong. But this is just my $0.02
Also, wow. Elizabeth Olsen looks so TiNe sometimes. Especially in that video.