While it's natural to speculate if this means we'll be seeing new entries in these series, the renewal of trademarks is a pretty common (and boring) practice. In fact, back in 2020, Nintendo renewed 39 trademarks at the same time, covering everything from Freaky Forms to Radar Mission. Trademark renewal basically means that Nintendo can retain the rights to a name and not have another company apply for it.
As we said back in 2020, this is merely business as usual, but we're only human – so let us know if you'd like to see a new Duck Hunt, Mario Strikers or Excitebots entry by posting a comment below. Can't do any harm, right?