On the one hand, there has already been one extension, 3DS arguably does what a merchant would need, and I can't see any financial regulator easing-off on consumer protection in relation to payments at the moment. 

On the other hand, I have always wondered who exactly thought that putting the (extended) deadline for implementation  (31 December) right in the middle of most retailers' busiest period  - when most look to "freeze" any IT changes / projects as it is - was a good idea!