I love your analysis Pearl! I think you may be onto something. Writers for Indian serials often have many ways they can take the story forward, and they decide which way to go depending on viewer responses and TRPs. One thing that may certainly raise TRPs is Pinky's OMM!!! Wish that happens soon.
I am not sure whether Shivaay is in on the plan, but Annika has definitely stumbled upon a big secret after her chat with Tia. Her entire demeanour towards Pinky has changed. She is now telling her what to do, and not pleading or begging her not to hurt Shivaay. Perhaps because she has discovered that Pinky has forever been hurting Shivaay so to ask her not to do this wont be possible. Hence, someone has to protect Shivaay, enter Annika!! Annika is now on the path of protecting her loved one, where she is fierce in her attitude. She is showing Shivaay exactly what his mother is like. She is making Pinky do everything she does privately to Annika in front of her son. Whether Annika leaves OM or not (and even if she does, it will be for a short while), She is dropping hints in front of Shivaay to pick on and connect. Jhanvi's presence is also of course deliberate. Jhanvi has always supported Annika and has even fought with Pinky (refer kulgotra pooja) when Pinky was trying to insult AniRi. Jhanvi will support Annika in the end, she will be the witness to the immense hate Pinky harbours against Annika in her heart. And Shivaay has ALWAYS listened to Jhanvi.
As far as bringing OmRu is concerned, here again I think Pinky's OMM is approaching. Shivaay may in anger transfer everything to OmRu!!!
Annika's behaviour is going to be so uncharacteristic that Shivaay will have no option but to investigate what happened.
Annika is also cornering Pinky. I am sure Pinky is soon going to expose herself by admitting that she asked Annika to do something so that she is thrown out of OM. Ponky doesn't understand that Shivaay isnt going to throw out Annika so easily. He has been reiterating to her over the past few days as to how important she is to him. But Pinky's hatred is blinding her to her son's happiness.
We may as well get the vanvaas ocne Pinky's truth comes to light. I think Kamini's truth is still some way off. Pinky may well be redeemed, but hopefully not immediately.