Now that the NDP have suddenly become the official opposition in Canadian Parliament, their party's self described "Socialist Caucus" is making demands. There aren't any surprises on the wish list, which includes shutting down the oil sands, nationalizing our banks, boycotting "Israeli apartheid", etc. These policies and positions have appeared in past and current NDP doctrine, the question is will the party turn right or left as it springs into the "mainstream"? How much is there left to win on the left? Clearly the only place to make significant electoral gains is to shift party policy towards the center, but somehow I doubt that Jack is going to do that. You don't become more mainstream by becoming more radical. We have seen in the past that Jack's idea of compromise is getting everything he wants.
What will happen next is the NDP convention when the left wing of the NDP will try and pass resolutions on these policy matters. Layton and the party leadership do have mechanisms to kill or at least mute these resolutions. We'll see what happens.