Should I continue to contribute to Roth

My wife and I are 52 and have hit our number but plan to continue working while my kids are in grad school.( 3 more years). My plan is to draw down from my investments in the amount of 40k per year. Therefore only paying cap gains when I get to this stage. Taxes At a fed level will be zero. (Please correct me if I'm wrong). Should I continue to max out my Roth or put that money in my personal account?