To Republicans' credit, they have not flipped on states' rights even when they dominate DC. Maybe this is a good time for everyone to (pretend to) be aligned on states' rights and ram through some measures to that end.
There are inklings of a change there. You can see it in things like proposing to prevent women from traveling to another state to get an abortion, or forcing states to assist the federal government with immigration enforcement. I expect we will see more of that if it helps them get to their desired policy goals.
Absolutely. "Conspiracy to commit abortion" is being proposed if not partly a thing in many states, and runs the gamut of anything from looking up info online, to traveling, to financially supporting or even giving a place to stay for someone doing this.