Why would you want to put scala files on a sequencer? Unless you're thinking that it should be outputting note-per-channel midi with pitchbends, like an H-Pi. I'm a microtonal advocate myself, but realistically that seems like a pretty esoteric request for this particular device.
Anyways if you're going to do that it should use MTS files, not scala. MTS is part of the midi spec, and it's in use by Korg, Novation and Dave Smith / Sequential.
One thing that would be useful would be some way of receiving, storing and transmitting sysex bulk dumps. With that, MTS could be stored, and then transmitted to an MTS compatible synth to change the tuning. Sysex support has lots of other uses of course.