The Rosh Yeshiva, Rav Elya Brudny said:
All those that are on their way or are there, should go. They went with the right intentions and following directions of going, "im alu lo yardu" - You went to increase the numbers, not for program and have that in my mind. What changed was that the program is a bizayon to shomrei Torah and mitzvos, a bizayon to mitzvos, shabbos and tefillin - no connection whatsoever to our world.
Those that went should stay and have that in mind.
(this is confirmed)