I don’t think we’re getting another direct for the next 3-4 weeks, at least.
However, I do think that them announcing a Sakurai Presents on Twitter is very likely.
If we got a Sakurai Presents on the 28th, then that gives Sakurai and the Smash Team 490 days to finish 4 more characters, or 4 months in-between each character. It’s been 5 months since the Arms character’s announcement and 2 months since it was revealed to be Min Min, so if we round it up (after finding the average) that’s 4 months. It just makes sense that we get a Smash announcement really soon, and I don’t think it’s happening in a direct.