As Gummiel put it, there's already plenty in terms of movement for the player at the start, with dashes and a double jump - if you want to test things out, you can even try block canceling a midair melee attack (or block cancel the endlag of a midair melee attack to quickly become actionable again)
Given that this is a demo and what classes are potentially available, I would assume more mobility options will be present later, in the form of class-based options, which we've already seen with Mystic's Blink (and with block canceling, the Fighter midair hammer attack)