I flew that route just this last weekend. Don't know about the back but the front was full. It was the A330.
And the entire crew was fantastic, particularly the SD which was simply outstanding. He put a smile on everyone's face ^^.
I had a nice chat with the route supervisor that was on my flight; certainly an indication that AC is assessing this route but I don't think it would be for a downgrade.
Have fun in AMS !