Yes, Trump will continue pursuing his standing behind the idea of a deportation taks force. Trump's campaign manger, Kelyane Conway, has to make Trumps behaviors, actions and opinions seem more favorable to the people as her job requires. She has to make him look good. Of course his campaign manager would rather answer with "to be determined" than "yes" because the first answer sounds uncertain, therefore sounding better to people.
Trump will continue to support and persue this plan until it has been proven to him that it is impossible. It is not clear when this might or might not be. Trump has made it very clear that he does not care what other people think and that he does not let facts stand in his way.
Yes, he will continue pursuing this plan. If Trump's campaign manager Kelly Anne Conway says his standing behind the idea of a deportation task force is "to be determined," then he will do it. Although Trump may not be the best or most suitable person for president, he is determined.
Donald Trump's campaign manager Kellyanne Conway has been critical of his off-the-cuff comments and controversial views for a long time. Now, as a member of his team, she continues to maintain the views she has always had and seems to be attempting to guide his campaign in a more moderate direction.