The big news is that restoration of R line service between Brooklyn and Manhattan is weeks away. There are a few service changes planned for the coming weekend. The C train will not be running between Brooklyn and Manhattan in either direction, although the A train will, so there will be less service than usual at High Street. For those traveling into Brooklyn, F trains will be making all C stops between Jay Street-Metro Tech and Euclid Avenue. G trains will not be operating between Hoyt-Schermerhorn and Church Avenue, but will be operating normally in the other direction, towards Williamsburg, Greenpoint, and Queens.
The following week, there are no major disruptions (apart from the lack of service on the R line) affecting service at local stations. The 3 train will not be running from 12:30 a.m. to 5:00 a.m. on Tuesday, but the 2 train will be operating normally.