Dealer and customer feedback is what usually dictates production.
Obviously, unless Lionel feels a need for another round of financial punishment, they must be feeling quite confident these latest models will sell in the numbers produced..
Myself, I don't believe in this day and age of collapsed valuations in a market pressured under a string of repetitive and excessive production, folks will line up to buy into highly priced models in a big way. Especially reissues missing heavily advertised upgrades and selling without the benefit of lowered prices.
Joe