Back in 2004 it seemed like Downtown Los Angeles would be getting one of the largest developments in the city’s history: the $1.8 billion, 3.8 million square foot Grand Avenue Project. Overseen by a city/county entity called the Grand Avenue Authority and developed by the Related Companies, the project would insert residential, retail, hotel, and park spaces into the city’s long-struggling core. Just a week ago it seemed like that dream was dead, when the Grand Avenue Authority voted unanimously to reject new architectural plans by Related, which included a sharply reduced scope, and a whole new team of designers. (Gone is Frank Gehry, in for the master plan is Gensler.) But on September 30 the Authority voted to give the developer a four month extension to adjust the plans. Whether the authority will move ahead after is still very much in doubt.  The only sure things at this point are the 16-acre Grand Park, across from The Music Center, and Arquitectonica’s 19-story residential tower, just south of The Broad, which broke ground several months ago.