The true Evangelion… The one we dream of.
Its birth and the resurrection of Lilith will seal the pact.
The required rites must be carried out before that.
All we do, we do for the sake of the Human Instrumentality Project.
The true Evangelion...
All currently active units, Unit 01 included,
are merely there to clear the path for its completion.
And is that the Mark.06?
They want to create a real god, not just false ones?
True Evangelion, Real God.
The fact that the title refers to the entity that will created within is further reflected in the way "Evangelion" is written in katakana. They reverted to the original spelling, エヴァンゲリオン, which has not been used in the new film titles before now (they were "Wevangeliwon"), but HAS been consistently used to write "Evangelion", as in the Evas themselves.
And lo, with the promise of at least symbolic sex between two Evas, Reichu goes from despising Eva-13 to being doomed to an entire year (at least) of writing bad Eva-01/Eva-13 smut. CURSE YOU ANNO!