SSMS - Is it possible to pass additional connection parameters via Command Line?
Unfortunately not. If you type ssms.exe -? or look at the documentation you'll see the list of possible options:


  Ssms
      [scriptfile] [projectfile] [solutionfile]
      [-S servername] [-d databasename] [-U username] [-P password]
      [-E] [-nosplash] [-log [filename]?] [-?]


So there is no option to specify a connection string or additional connection properties.