Wife reopening 498A case even though compromised one year ago

Hello,
Yes she can again file a complaint and you could be in trouble. Thats what law says. But there is no possibility that you will be convicted. As there will be new circumstances and facts now. That is the matter of court to be decided. My best suggestion is, if both of you are not able to live together, file a mutual divorce to avoid these kinds of situation in near future. Ask her to file a mutual divorce on the basis of some compensation amount. Also this will give you 18 months time to think whether you can live separate or not. Think over it by talking mutually to each other, rather than wasting the time of Hon'ble Courts and yours also.

Ya she can again give an application to the police for registering the case u/s 498A on different grounds but the remedy available to you is that you can go for quashing the FIR before Hon’ble High Court or you can contest the case if you contest the case hotly then also you can get acquitted