Could pig's heart be possibly used by humans?

According to reports by Deutsche welle, A surgeon Bruno Reichart has successfully implanted a pig's heart into a baboon for the first time offers hope this might be possible for humans too as pig heart is also very similar in structure to a human heart. Though according to the surgeon, the pig hearts have to be genetically modified before they are transplanted.

Note that the valves from pigs' hearts have been used as a replacement in humans for 40 years.

But whether pig's heart transplant to humans will be successful or not pose the question. 

Photo credit: Deutsche Welle