Already been, RSOC had invite from Ford, potentially another may happen, but you need to be a member. There were free spaces as well when I went. Issue could be soon new Focus will be coming out so the current one or the factory my be off limits. We had the program manager come down and gave us the tour, but wouldn’t give many details or secrets away.
Most noticeable thing to me was how few they were building, looked like they were short of some supplier parts again, hence the delays and waiting people have had.
I’m going on 01/06/17. The visit on the other forum seemed to flounder around February time but was recently resurrected at short notice. A couple of people are driving but most are flying out from Stansted to Luxembourg on 31/05, hiring cars and staying in or near Saarlouis overnight and returning the following evening. Dates from Ford are very limited now I understand. There are still places but you need to be a member of the other forum.