My suggestions for the show currently are:
(1) Use the chawl issue to redeem the characters of Archana and Manav. They have begun with Manav, having him say he has been emotional with his thinking, but over time, has learnt to think practically too. Time to include Archana in this reform effort, to make them more realistic.
(2) Bring the issue of Savita's actions regarding Sachin and Shravani, to the attention of Archana and Manav so that all members of the household are aware of what happened, and why.
(3) Bring out into the open, the cause of Savita becoming negative once more, i.e. the issue of the FD's, so that Archana and Manav can tell Savita the truth and their relationships can be normalised.
(4) Have Savita (after relations with her have been rectified), tell Archana that her mahaan approach to life is negatively affecting those who come into contact with her, therefore she needs to stop this habit. Savita also needs to let Archana know how to separate her mother's family matters from those of her present family (in-laws), and that her in-laws come first.
(5) Expose Dharmesh for all that he has done and fire him from DK Construction Co.
(6) Have Sulochana deal with Manju in a similar manner to Savita dealing with Archana, so that Vinod and his family can return to their home with their children and live how normal families live. Ofcourse, Manju will never be a saint, we have to be realistic, plus this is a serial and we need negative characters, but make her actions less heartless.
(7) Have Ajit show signs of reforming and becoming a responsible husband and father once more. Nothing sudden, as they did with Hiten's portrayal of Manav, just signs of change coming, which will be reflected after the leap.
(8) Deal with Vandu's abuse issue seriously, showing options available to women in her position and how they can successfully change their lives for the better.
(9) Definitely deal with Varsha's obsession with Soham, but this time in a professional manner. Show how these situations are dealt with properly and how such people can return to a normal life.
These are examples I can think of now. If I come up with more. I'll post them later. I'll also post my ideas about the show after the leap, later on.