Speaking with Car and Driver, Alfonso Albaisa, Infiniti's design boss, said the company is planning some "news" for the Detroit event when asked about the possibility of a new flagship luxury sedan.
"In Detroit, we will show something about that subject which is super nice," he said, "the straight sedan is losing a little bit of appeal again."
The head of design indicated this new model would look less like a traditional sedan and more like a four-door coupe.
"Honestly, we have a little bit of a new proportion because of new technologies, and without saying too much, we will have some news in Detroit," he added.
It has been over a decade since Infiniti last offered a full-size sedan, as the V8-powered Q45 went out of production in 2006, though the Chinese market does get the Q70L - a long-wheelbase version of the mid-size sedan.
In 2014 when the Q80 Inspiration was revealed, product planning manager for Infiniti Cars Australia, Bernard Michel, told CarAdvice the concept did indeed preview a production model.
"You can’t be a luxury brand without halo models, right? So this is where the brand is going," he said.
"It will be a sports-type, as opposed to a more luxury-type car."
Funnily enough, just about every Infiniti concept since the Q80 Inspiration spawned a production model - think Q30, Q60, QX50, QX80 - and all have stayed relatively close to the show car preview too.
Above: Infiniti Q60 concept
Stay tuned to CarAdvice for our coverage of the 2018 Detroit motor show.