Can OLD still be GOLD if legends are replaced by the newbies?

If these classics were ever remade who do you think will fit in best in these memorable roles

1) Andaaz Apna Apna (1994) - This was without a doubt a cult classic movie of the 90’s, I am sure many from the 90’s would remember the epic one liners and dialogues from the movie scenes. The comic timing of actors like Amir Khan, Karishma Kapoor was epic. Can Varun and Ranbir do justice in these roles?

2) Amar Akbar Anthony (1977) - This beautiful storyline captured many hearts in 70’s with impeccable performances by the legends Amitabh Bachchan, Rishi Kapoor and Vinod Khanna, it would be very difficult for the casting directors to look for actors matching these performances. Would Ranveer Kapoor, Vicky Kaushal, Ayushmann Khurana fit in well ?

3) Mughal-E-Azam (1960) - This movie is still the perfect blend of phenomenal music and cinematography. In an old interview Randhir Kapoor said that Mughal-e-Azam cannot be remade, well somewhere we do agree of what Mr Kapoor has to say on his grandfather’s classic film. But we wouldn't mind thinking in the direction of who could be Madhubala of this era?

We would love to hear your suggestions on this!