So we know that Monomi Park is going to GDC based on a tweet Nick made.The team probably won't get any work done during those days. GDC 2017 ends on March 3, so we know 0.5.0 will release in sometime in March. Normally, we wouldn't know the date, but the Monomi Park twitter tweeted this:
https://twitter.com/monomipark/status/8 ... 3454040064For the people who can't get on Twitter, the tweet says, "Slime Rancher v0.5.0 is shaping up nicely and will be arriving after the Monomi Park crew returns from GDC!". This narrows down the release window. Based on this tweet, we can conclude that 0.5.0 will most likely be released sometime between March 4-11. Of course, things can change, so take this with a grain of salt. I am in no way saying that I know what day the next update will be released on. This is just a guess.