I will be offering ISTDP training in Boston starting in the fall of 2016.
The details are not fixed, but the current plan is to meet once a month for half of a weekend day (4 hours). This will allow time for didactics, experiential exercises such as role-plays, consultation/supervision, and lots of video (mine and hopefully yours).
Location, exact schedule, and pricing are all to be worked out, and early birds can have some input.
Please let me know if you are interested—or have any questions, at firstname.lastname@example.org.