Yes they will be done with 63rd street come April 1st (im sure with a few GOs for punch work a shutdown weekend)..
Service patterns will go back to how it was before 63rd, 53rd...
For those who wish (and i mean wish) for the flip flop not happening because the will be cut back as it is already and just adding more switch movement in the 36th street area just isn't worth the CBTC glitch factor.
It Glitches out often in that area.
Weekend late night late evening service however might be different (ill really find out once i see that supplement)..
service local a bit more so no more Full time express service in Queens.