I mean, I would love this, especially if it meant we finally get a Metroid Prime 4 release date, and it would be a huge get for Geoff to essentially have a Direct Mini embedded within SGF, but I doubt this will happen, because if Nintendo really had three game trailers they wanted to drop right now, they would scrape up some third party announcements and throw together some form of Direct. Even if they don't have any more major first party announcements for this year, they can just tape a teaser for a future game on the end (see: the Breath of the Wild sequel reveal in 2019).
What's more likely if there's no June Direct is that we're looking at one of two scenarios:
1. They didn't want to complicate the Switch 2 launch period with a Direct, and they'll drop their usual summer show in July instead, probably a week or so before Bananza launches. They really don't have any unfinished business between now and then, since they have games dated between now and the end of August, and their only undated summer game is Drag X Drive, which is digital only and can be dropped whenever. Their next game without a release date is probably MP4 and that could easily be dated in July if it's dropping in September. Kirby Air Riders is probably a late 2025 release, since it would be kind of nuts to drop another racing game too close to MKW.
2. The next general Direct is in August or September, and we'll get a DKB Direct and some twitter Nintendo Today news drops between now and then to announce the DxD release date and possibly announce some old games being ported to Switch 1 (like Yoshi's Wooly World and Kirby Planet Robobot) in the interim. The only issue here is how they would handle MP5, but in this scenario it's probably an October game or it gets its own dedicated Direct. Or maybe a miracle happens and SGF actually does have the release date trailer.