I don't think so, the coding and files seem to be separated and your option is to fill out questionnaire to get the relevant story points for the .17 on or you can go back to part 1 play through and start with the new save on part2 when you get to the end.
Moonbox might change that when part 2 is done and we move onto part 3 and combine the past parts into one parent file as an option.