No, the four new reactors are being built right now, bending rebar and pouring concrete on site as I type this. The legal challenges and other distractions are done and dusted, the financial instruments are arranged with Government guarantees for the commercial-market loans (not financial payments, just guarantees) that are paying for the builds.
I don't think there are many if any new starts going to happen this year, on the other hand about 75% of the existing nuclear fleet in the US has received licence extensions past the original forty year mark and most in that age bracket are in train for mid-life upgrades and replacement of parts that are wearing out, like steam generators etc.
Right now gas is cheap, coal is cheaper, nobody cares that much about flue gases and pollution from coal and gas generators and wind and solar are still getting lots of financial and legislative support from the government. Nuclear is the Cinderella of the US electricity market, unloved and untrusted but working away day after day generating about 20% of the US total requirement without emitting CO2, mercury, nitrous oxides, sulphur compounds, dioxins, cadmium, radium, radon gas etc.