Hypothetical lingustic senerio Latin Starship reask ?

here is the situation- An Italian aerospace genius invents and builds a starship- he gets families from Brazil, Mexico and Romania and Italy to join him on the trip- if they are left alone for a 100 years both in space and on the planet they establish their colony on. Unlike the last time- the question was asked this time every one learns Latin for use as a common language - in the period of a century or two do you think Latin would be revived as a spoken language or would their be a new Romance language ?