I am a little surprised that this has not been raised before but there are MAJOR roadworks on Scheldelaan north of Lillo. In fact, when I was there 3 weeks ago, the road was shut completely northwest bound. I know there is little north of Lillo other than the Zandvliet/Brendrecht locks but if, like me, you leave Antwerp this way heading for Rotterdama you cannot. In addition coming south to the locks, do NOT miss the single lane exit right marked "Lillo". I did and had to backtrack about 5km in order to do a U-turn.
According to a local friend, there isstill 2 years to go!