Interesting. Not seen a hint of 730/2 not being built, anywhere.
Personally, could never see how LNR and WMR are going to migrate from a 350 operation on the WCML into a 4 car 350 and 5 car 730/1 and 730/2 operation. As they seem unable to allocate the 350/2 to their own diagrams, i can only assume they are going on a learning curve to keep 350 away from 730.
So if the 730/2 order is cancelled, are there approximately enough class 350/2 vehicles to replace them ? Obviously realise 350 vehicles are 20m per car and 730 are probably 5x23m.