Or still could be. The following is the first model of the stadium designed for the now defunct Orange Bowl location. Since the designers of the stadium were presumably HOK S+E+V, and the fact they have designed every modern major league baseball stadium since 1991, it is possible they will use this same blueprint for whichever location is chosen for the new Marlins stadium. Assuming anyone finds the funds to build it.
Since this is the first model and time has past, there could be dramatic changes for any future park for the Marlins. But it looks good to me, although it does remind me of Minute Maid, which isn't bad. Minute Maid isn't the best looking park they ever designed, that honor belongs to PNC in Pittsburgh, but the Houston park is one nice retractable roof facility. I would take it in a heartbeat.