My guess as to what happens:
1. There will be some highly publicized deportations of some individuals, probably more smoke than fire.
2. There will be efforts to round up more folks that get stymied by court actions (and media coverage, which will be even more harsh).
3. Congress probably will fund more "border wall".
4. In four years, we'll still have 20 million or so "undocumenteds" in the US. Trump et al. will blame "liberals".
5. Some of the Biden measures will be strengthened to an extent and border crossing figures will drop some.
It will remain an electoral issue in 2028.