Now the results will be something like this, Punjab VS Kolakata -> Punjab will win and go to final. Chennai vs Mumbai- Chennai Wins, Chennai Vs kolakta - Again Chennai win....... then the final will be between two sworn enemies VIRU AND MSd, I support Viru so Punjab will win the final 
After watching last two matches of IPL, I'll say opposite of this might happen, but one thing for sure that CSK will be reach the final keeping their track record in mind..! but again anything can happen ..! but now its not that easy, MI also in form now so it will be really tough for CSK to reach in Final.