One scene, one promo is not a criteria to be judgmental but there is a strong reasoning that backs up the fact that Madhubala is heading the Naqaab way...
The way RK seeked MB forgiveness, was like he was seeking it for the future...For everything he has done, which basically is playing with her feelings...I wouldn't say that RK has no feelings for Madhu but it sure is not as strong as his urge to hurt her, or shoot the realistic movie (If they did) as i mentioned...
Madhu becoming a heroine is the main theme of the show...Above all...and this is the sole logical and reasonable way to do it...Tonight's "Maafi" along with the promo makes things more obvious...
Having said all that, i still think it's a wait and watch situation...
Previous Post about the TRACK they could incorporate, which would look logical...
https://www.indiaforums.com/forum/madhubala-ek-ishq-ek-junoon/3422075/promo-what-if-rk-was-acting-remember-naqaab