A tweet went out today which mentioned a patch containing "minor adjustments to a variety of weapons" for the popular online shooter, but the tweet was deleted not long afterwards, suggesting that it was posted earlier than was planned. Nintendo had previously stated that another update for the game would be coming in
April, so it's not like it's a surprise – it's just odd that the post was nuked.
While Splatoon 2 is unlikely to get a massive update again, Nintendo is clearly continuing to tweak the game's balance to ensure players remain happy – and tinkering with the myriad weapons available is naturally an ongoing process. The most recent update –
Version 5.1.0 – arrived in January and was a multiplayer-focused update that changed a bunch of weapons in the game.