No and no.

How many buildings will there be?

What kind of complexity can we expect?

Yeah, that's a little tough to answer given the way things are in Satisfactory, but a safe answer would be I counted about 24 unique buildings and that doesn't include foundations or vehicles or a couple other things as well.

As for complexity, I mean, I don't know.

It's complex for me, but I don't know how we gauge that.

But with the number of buildings we have and the number of resources we have, I think things get pretty complex.