Here's what he had to say:
Your son will be departing from the England Missionary Training Centre on Saturday, October 25. We want you to know how much we have enjoyed having him with us.
Elder Thompson is a fine young man and we are grateful for the opportunity we have had to work with him on a daily basis. He is well-prepared for his mission and he continues each day to grow spiritually. He is developing good teaching skills and is excited about the work. He is ready for full time service in the England Leeds Mission.
He also attached this picture. From Coleman's email, I'm guessing that these are all the missionaries currently at the MTC.