What can we actually expect?
Expect Inmarsat-5 F4 to get pushed back a little, CRS-11 and Intelsat-35e to get pushed back a lot, and everything after that is a rough outline at best.
Not sure why we should expect Inmarsat to get pushed back at this point other than typical last minute delays due to things like weather. SpaceX just demonstrated a 2 week turn around, and the current 1 month turn around is likely a payload issue.
For reference, the table has these unrealistic dates because they are the last available official information. CRS-11 requires coordination with NASA, and will probably get adjusted after the Cygnus launch. I assume everything after that will end up rearranged based on that.