I placed an order for a Model X on 10/1/16 with final confirmation on 10/8/16 and ordered the autopilot features as part of my options selection. I contacted my representative today and they told me that my car would be produced as-is. If I want the new features, I'll have to forfeit my $2,500 deposit, put down a new $2,500, and get back in line.
You are getting more bad information... If you car hasn't been made yet it will include the new AP hardware. There is some discussion that if you paid for AP ($3k) you will get that version of AP, with an option to upgrade to Enhanced AP for an additional $2k, or to full autonomy for an additional $5k.