The MarketPlace is going to be in Freedom Hall A at the Downtown Lancaster Marriott. The hall is about 15,000 sq ft. I know that they are planning for betwwen 110-120 tables, of which, last I heard, over 80 are sold.
In the Hall will be the operating layouts. So far, the Standard Gauge Model Railroad Association, the METCA Kids Club will be running on Kevin Davis' LCCA modular layout, the Raritan Valley Hirailers will have a huge layout with a 4 track main line and I have just got a call from a N scaler with a small miltary layout to bring.
To get a more current update, look up Russell Youens on the Convention Website page and call or email hime. He is the MarketPlace Chair.
Peter