I think Vykker's eye are too beady to be the ones reflected in the glass.
I'm sticking with my Intern theory, they just resemble the reflected eyes far more than a vykkers to me(just wider, as if it were surprised or something). If we are seeing vykkers then doesn't it make sense that Interns would be hanging around them too?
They really don't look lke mudokon eyes either, so unless by some crazy far fetched chance we are going to see and completely NEW creature/spieces in this sequel, my best guess is Intern.