These are not newer planes but iterations of existing models. Granted that airline industry is slower in churning out newer planes than say automobile for obvious reasons, but you don't say Nissan is launching a newer car called Altima TTZ.

However, for the sake of the argument if any iterations of these existing planes is worth citing as a "newer" plane then IMO it is A350-1000ULR which is going to operate the longest flights ever from Australia to New York/Johannesburg/London/Brazil https://www.ausbt.com.au/airbus-mulls-ultra-long-range-a350-...