>>2901503It's possible, but I don't know how likely it is.
I always get the impression Tachibana is a rather small, but highly influential, organization.
I have no basis for that though.
A storage of Lain prototypes is a cool idea, but I don't think they'd have too many live experiments going at once. They're pretty resource intensive, not to mention dangerous.
There really isn't any way of knowing this for sure though, it's all speculation.