I'm flying LHR to EWR in WT+ next Monday. As a silver, I selected 20B (first row of WT+), with the bassinet seat next to me blocked at the time of booking. Today I checked expertflyer and noticed that 20A is not blocked, but appears to be taken. Does this mean it is very likely I will be seated next to a baby, or are these seats available to other groups before T-72. For clarity, I'm not against babies (I have 4 grandchildren) but I will be trying to work during the flight and I am concerned that I may be asked to move seat to allow a family to sit together, thus putting me in a difficult position.