Nothing in that statement at all which points to a "new" system in the way people on GAF would interpret "new".
Seems to say more that:
With this release schedule for new hardware and Nintendo Switch having just marked its highest sales in its fourth year on the market, we do not have plans to announce a new model.
(1) There are no plans currently for a completely new device in the Switch family
(2) They're still trying to bleed people dry by releasing models with new skins (literally just a new skin, think about it, stop buying this shit)
this will also drive increasing demand for a second system among the Nintendo Switch family of systems
(3) They want people who bought a Switch to buy another Switch or a Switch Lite.
(4) They want people who bought a Switch Lite to buy another Switch Lite or a full-fat Switch.
for sales to grow even further, we will need to communicate the appeal of Nintendo Switch as a video game system to people who have not yet bought one as a result of our past initiatives.
(5) They want more new customers.
I mean seriously he said absolutely nothing of substance whatsoever.
Only thing you could read into is that he said "we do not have plans to announce a new model", meaning he neither confirms nor denies the existence of a new model/the development of a new model. Makes perfect business sense that they wouldn't be in any rush to announce a new model when Switch sales are through the roof. It's not like traditional consoles where Playstation and Xbox are second-guessing each other and playing a game of chicken regarding who announces first.
Nintendo can take as long as they want (and they will because the margins on Switch must be enormous considering the age of the hardware inside).