Is the plan still the plan if you hear nothing more.

It's a Norwegian trait that if you say you are going to do something that is the plan until you hear something different. 

In sample Ireland a plan has to be reconfirmed and preferably every day until it happens or else everone assumes its cancelled.

Back last spring Norwegian said they where hibernating their longhaul until March 2021. One would think that after such a long hibernation an official declaration would be made if this was still the plan 9 months later. But not Norwegian. They have started selling longhaul seats both out of London Gatwick and Paris and probably other permutations if you want to check: Norwegian destinations from Gatwick 

However there is no rumour about them having started retraining their 787 pilots at neither London Gatwick nor in Paris. They proably have kept some 787 hopefully training pilots current to do ferry flights. Some of the Dreamliners have gone to Shannon and back to leasers to go to new customers. But its not a good sign if some more serious action not soon is taken.

It is also odd that no longhaul flights are on sale for March out of Oslo if Norwegian really are retrenching to their home market. At least not direct, only via LGW.

It is besides quite sharp practice for a bust operation to sell seats on a longhaul operation that neither board nor examiner have oficially agreed to so far. That is jumping the gun or maybe trying to present a fait accompli. It was a future business plan the examiner wanted, not something that can be difficult to reverse.