Briton Sean Tinsley is to face trial for attempted murder in Pattaya this month and members of the family of victim Adam Pickles are scheduled to fly to Thailand for the event.
Adam Pickles, 41, married with a young son, was attacked in Pattaya last May in apparent road rage attack and has been in a coma ever since. He is now in hospital in his home town of Bradford, Yorkshire, and money is still being raised in an appeal.
He was Head of English at the International School of the Regents outside Pattaya.
Tinsley, from Wolverhampton, was granted bail pending his trial.
Some people who had acquired Thai visas through his agency ended up doing jail time.
Court schedule: 21-22-23rd August Pattaya Provincial Court