The Texas round of MotoGP is to go ahead. The race, due to take place at the Circuit of the Americas in Austin, Texas has been confirmed for April 21st, 2013, with Dorna and the Circuit of the Americas issuing a joint press release announcing the date. The race in Texas was one of the two races marked as being subject to confirmation, but today's announcement leaves just the race in Argentina and the Jerez round to be confirmed.
Confirmation of the race comes despite the ongoing legal action between Kevin Schwantz and the Circuit of the Americas. That legal action should have no effect on the race actually taking place, however. The lawsuit filed by Schwantz against COTA will take some time to actually get in front of a judge, and the most probable outcome is that money will change hands to settle the deal, either one way or another.