Veer's death can be a catastrophe for Amrit because Rani Maa doesn't like her and will most likely throw her out.
Randheer will be eager to help but will she tell him the truth why she married Veer? He deserves to know.
I think she will not but it will come out some other way.
According to precap Randheer already knows about the deal. However, I don't think the information about AmVeer marriage was given to him by Amrit.
RM yet has no idea about AmDheer relation and when she gets to know about it, I highly doubt she will accept Amrit. For RM, Amrit will always remain a gold digger.
Randheer's problem is he doesn't understand or wants to accept that Amrit willingly stayed with Veer. He always blames Veer as he wants to believe that Veer forced Amrit to live with him when in reality Amrit had many chances to walk out from AmVeer marriage.
Further, no one can throw Amrit out from the Palace if she is willing to stay. She is legally Mrs. Amrit Veer Pratap Singh and has all the right to everything that belongs to Veer (Veer has given her that right and also a share in the property)