Here are examples.
On August 2015 during an interview about Metroid Prime: Federation Force, Tanabe said that he was not quite sure about what Retro Studios was working on, leaving the impression that he was no longer involved with their unannounced project.
I’m not quite sure about the stuff that they’re working on at this time.
Retro Studios ‘Very High Priority’ As Developer for Next ‘Metroid’
“Certainly the Metroid franchise is one that, when you talk about really bringing the world to life, we feel that Metroid and the characters established are really important for Nintendo. So important that they were included, obviously, in Nintendo Land.
“I definitely think it’s a franchise that we value and we certainly want to see what we can do with it in the future. And, obviously, Retro is a very high priority in terms of the potential team that would be considered for working on a Metroid game.”
Discussion started at here by beetleking22