MyriamNeeme, right now no one knows about dates for Montreal of if Mika will do Staracademy again next year but if he will do it will be posted in the News and Press section at the time MFC gets to know about it. So we can´t answer your question right now. All we know about are the concerts in October and that he is doing XF Italy and The Voice France at the moment.
To make the waiting time shorter you can read all the threads about former concerts or The Voice or XF, here on the forum you can find so much information about Mika´s carreer. When he will tour again next year or in two years he will come to Montreal for sure but we don´t know when he will go on tour again.