Would Singapore River change it's course or shape?

This is what the Singapore River looks like in the olden days.

And this is now it looks like now. Not much had changed since the olden times, but the causes had changed a lot. 

As the sides of the Singapore River are set in concrete and building surround the Singapore River on both sides, we doubt that Singapore river would change it's shape nor course in any way in the future as it would affect the shops and people.