Id expect they will, WW arent going to encourage people to follow Discover now that the new plan is up and running. Youll still be able to work out the Discover points though, just make sure youve got your calculator when you go shopping
Next time you buy a few from Iceland note down how many points it says on them. That way even when they change to pro points you will know what they were.
I always did that too, its not unusual for supermarkets etc to change something in their meals and it impacts on the points value without you realising.
Safest thing is definitely to do it yourself via the back of the pack and your calculator
i doubt the cheaper places that sell WW food will be changing theirs to propoints anytime soon, even when ww actually do change everything, places like poundland, iceland and cool trades do amazing business from the products they sell at their prices, i doubt very much they will change that, knowing full well people will carry on buying them as they can just change the points over to pp themselves etc, eventually maybe but not straight away like the likes of tesco/asda/morrisons/sainsburys will do etc, just my thought but seems unlikely so you should be alright and like already suggested find out the points of your fav meals and jot them down so you know what's what xxx