Trudeau is NOT growing into the job. He still looks and behaves amateurish, still says stupid and vacuous things. He;s still getting stumped in Question Period and now his alt left flank is slipping  away because of broken  campaign promises such as being the greenest PM ever, aka  not approving any pipelines, his promise to adopt the UN Convention on Indigenous peoples or eliminating FPTP.
Junior will be extremely lucky to have a slim minority government  in 2019 after his alt left flank flees back to the NDPeee.
This  is  assuming the Harper economic bump 2014  doesn't tank dramatically under the weight of the 130 billion in extra federal debt we're projected to incur by 2019. 
Yes 2019 will be a lonely place with NO Kathleen or any sign of a Fiberal premier west of Quebec
I predict a one term PM..