I think it's still possible. Nintendo's E3 showing may have been disappointing but there is still good stuff coming for the rest of the year which people seem to be forgetting because they're too focused on how bad or disappointing the E3 direct was.
Mario Tennis Aces- June
Octopath Traveler, Captain Toad: Treasure Tracker -July
??? - August
??? - September
Super Mario Party - October
Pokemon Let's Go - November
Super Smash Bros Ultimate - December
Not to mention big games like Fortnite now being on the Switch, which I think can easily help push units for the system if they capitalize on the fact that it's the only place you can play Fortnite anywhere with console quality and proper controls. (There are already a couple people on Youtube that claim to have bought Switches solely after hearing Fortnite was coming to it).
Also there are games slated to release on the Switch in 2018 still like The World Ends with You Final Remix, Travis Strikes Again: No More Heroes, etc which could fill in some gaps in releases.
Both Yoshi and Fire Emblem seemingly getting delayed doesn't help, since one could assume those were gonna be the games to fit in the August and September months, but aside from those 2 months they still have a new first party game or exclusive releasing each month for the remainder of the year.
You gotta remember as well that new games can be announced at any time, Nintendo even said expect more reveals in the coming weeks and months. Remember how DOOM was revealed barely 2 months before it launched back in 2017 for the Switch? Their fiscal year ends in March 2019 or somewhere around there I think, not sure, but still they could also have another big game early 2019 that can push units too.
