Shipbuilders from around the world are currently being commissioned to produce fleets of enormous gas carrying vessels specifically in preparation for the export opportunities that will open up through the widened Panama Canal.

It's an unexpected result of the canal project as orders for Very Large Gas Carriers have gone up every year since construction first started. Japan among other ship producing nations is said to have received an additional 39 orders for such transport ships in the past two years. The U.S. will soon have the ability to as much LPG as it wants to all over the world.
As you already know, the Panama Canal expansion will soon be making U.S. propane exports available to the world's largest propane consuming market in China, India, and South East Asia. It's a development that by itself is making  U.S. exports to Asia not only viable, but highly sought after as it will cut travel times to the region in half as well as greatly reduce fuel and maintenance costs.
So it looks like the rumors are true. Just take a look at a price comparison between China and the U.S. The U.S. has the infrastructure in place to

Wholesale Price doesn't include shipping costs

start mass exporting it's 72 cents cheaper propane to Asia where it's in high demand and this will likely happen sooner rather than later.

With reduced travel costs by going through the canal, current estimates show that propane exporters will earn up to $14.5 million per trip. That's a single shipment to the region using one of these very large gas carriers!