Looks excellent, especially the track editor. Seems like they're really adding a lot to this one, huge amount of different modes available. I think I'll pass on GP Lgends and just import this, the track editor is too tempting to pass up.
either they're working on a vast overhaul (which would be nice), and/or waiting till it is near complete before they show any more... FE on GBA obviously takes less time to develop since they've already got a basic engine and 2 games out on it...