I have just read on Sail Magazine a very good article about speed prediction on both boats.
The article is signed by Ian Campbell and that guy is a kind of wizard on the subject.
He says that the American boat will prevail and by a considerable margin, providing that the "team can keep the rig in the boat"
I believe that this competition with these boats is going to bring new developments to the sail state of art, but I found shameful the way all the others teams were kept apart.
I find also ridiculous the upper wind limit set for the racing conditions: 15k
I believe we will see a lot of races interrupted by excessive wind and also a lot of failures in those boats. They are optimized for light winds and probably don't have the extra strength that is needed for a reasonable safety margin.
I believe that the possibility of a capsize while racing is probably a real one.
I also believe that the winner will be not the fastest but the one that could finish the races and remain in one piece.
I only wish they could race on these conditions:
YouTube - Trimarans - Lunatic Sailing