Nobody really knows, but my prediction is that Reps will take both the House and the Senate. The polls are showing the House going Republican and the Senate a toss up. However, recent elections have shown Reps doing better than the polls indicate, and the Reps are gaining in a lot of races in which they were initially well behind. Both very bad signs.
Personally, I think the Dems are doing a terrible job politically. They need to address how they intend to solve the very real problems of inflation, crime, and immigration. Instead, every response to Republican attack ads in these areas is "yea, but they want to ban abortion." They made a lot of political capital on this initially, but polls have repeatedly shown it 3rd or 4th in order of importance.