Nintendo made a big deal about Unreal Engine support when they first announced the Switch. And while games built on the engine have been released for the console already, the latest update might make that infinitely easier for developers.
Support for Nintendo's hybrid console isn't experimental anymore, according to a post on the Epic website. As of version 4.16, the Unreal Engine has native support for the Nintendo Switch built in.
Getting a game onto the eShop is still another matter, but it does at least make the process a little simpler (especially for indie developers). In a separate post, Epic confirmed that UE4's support was certification compliant, allows for networked multiplayer and gives developers a variety of rendering options "to enable you to ship virtually any type of game" for the Switch.
That said, you'll still have to jump through Nintendo's hoops first. Budding developers will need to get approval first, after which point they can fill out a Console Development Request form from Epic.
Even presuming those steps aren't much of a barrier, it's not known whether this will make a massive difference for the Australian dev community. Locally Unity tends to be more popular than UE4, especially on the student level. But making it easier to push out games on the console can only be good for the hardware, and every gamer that has invested into it. It'll also be interesting to see if this makes it easier for developers to port existing Unreal Engine games onto the Switch.