1. NO: Because, cops would've came to your house with some papers in hands, they would've taken you and list of people enrolled in those papers with them. Those papers are not tickets to your entire family to go kasi, thirupathi and rameshwaram and for you it is not a special package which reminds honeymoon trip. Since 498A filed you and your entire family would've suffered for a long time around 2-3 months with different experiences like different expressions of neighbours, relatives, friends, kind of guiltyness in social life/personale/ work life.
If she really wants to seperate from you there are number of ways, no need to file such criminal and civil cases. She would've come up with elders for settlement, who could deal the issue softly, filing maintenance and divorce etc.
Or if she wants to live with you and wants to settle the earlier issues, here also there are ways, she would've came up with elders for compromising, if not she would've filed RCR, if not she would've talked to you alone(atleast over phone), or she would've Requested WC for counselling, or she would've waited for some more time.
Initially they would've though in different way that you would've scared of these cases and definitely come for settlement with a good package(money bag) with which she could live her life with second husb happyliy. But by this time she would've understand the benefits that the coming baggage is not of money but bag is coming with gray matter and got an idea on what she lost and going to loose in near future.
In this case/situation why one(victim) should accept the second offer when the result of first offer not yet shared by your best half, let her taste it.
2. YES: Because, for me it seems like you still have feelings for her and you would've know about your wife well. if the issues are really family matters with egos then consider YES.
You would've know about your wife and her parents, it is definitely not her who went to PS and filed a case on her own, it is not her who went to an advocate and sent you DVA notice. Behind all these actions there must be a master brain which lives in blackhole (it might be her father or some well wisher on otherside) whose ego was hurted or want to show his heroism and your wife would just be a marionette. once their heroism comes down and there are no new trics to show their mastery they will calm down and will do nothing.
If you have children then definitely think about the reunion. I am sure we are humans habituated to learn from past and present, so think positively. She would've tasted real results of 498A and if learned from that she would never try it again and even never thinks about it. (If unfortunately in future, she did so and the same thing happens again, then as you are already aware of the process you could handle it easily). But if you've done any mistakes earlier then learn from this lesson and never repeat them again.
At the EOD we are just HUMANS not kings and queens to remain in history forever. Life is very short and dont waste it with egos and taking revanges through courts, it is just waste of time. In wars in history, if any one is hurt and feeling unbearable pain the other will kill him(sort of mercy kill). But if we apply our judiciary system there, then it will kill the time not the sufferer and pain remans till u die.