I hope she does, if she doesn't this time then I think it is drag, I know all that fear and other factors but I think relationship will grow strong if truth is revealed by her and not someone else. Also she has to take chance and pay alittle for consequences of lying if any , yash in not God but humn and trust is one thing he has harped about since day 1.
In this case Schindiya family has done everything like good inlaws to bare with the other side I will not blame them, and I think the condition to have widow was to avoid these issues so they can't be blamed even if it is not fare, after all every one wants there childs happiness.