Alternate Ending

What would happen if Don and Peggy's dance at the end of "The Strategy" had ended a bit differently? Would life at SC&P Ever be the same? Rated M for language and sexual content. *Spoilers for season 7A. Don/Peggy, Stan Rizzo, Pete Campbell, Megan Draper, Lou Avery. **I own nothing, Matthew Weiner and Lionsgate own everything. ***COMPLETED 9/20/14