Here are a couple renderings of the Marriot Marquis from HotelNews.com. There is an extensive fluff piece article about Austin with them.
http://www.hotelnewsnow.com/Articles...el-development
AUSTIN, Texas—Because of its unique demand generators, the Austin, Texas, hotel market went into the recession late and seems to be coming out early. And with additional demand generators coming online, including a Circuit of Americas facility that will host a Formula 1 Grand Prix race annually from 2012 to 2020 and another 1,000-room hotel to host conventions, the state capital is booming with hotel development.