I would rather wait on the Elantra GT N hatch if they plan on making one. I test drove the N 'line' and it was nice. The interior looks light years beyond the FiST. And they can call it a hatch, but come on, it's a wagon and I love wagons. I had an '01 V70 2.4T I modified heavily. We had an old '69 Dodge Monaco wagon in my early years. I learned how to drive in that thing at 11 years old.
The Elantra GT definitely is more on the longroof side than most hatchbacks these days (looking at you Corolla and Mazda3). The Fit was in that same category of longer roof hatches too. I was legitimately considering one a few years back before I test drove my '15 FiST and fell in love with this car.
Hyundai is definitely still testing the waters on bringing full N variants of anything else here, but they're gaining mindshare with enthusiasts like almost no other brand is these days, which is crazy to think about considering what they were just 20 years ago. Who else is doing anything to really wow driving enthusiasts that can't drop $100k+ on a car? Honda's still selling CTR's at crazy dealer markups four years on. GM technically makes a $60k mid-engine Corvette, but good luck getting one (also, no manual). The Supra landed with a wet thud (again, no manual). Cars like the M2 aren't long for this world. I guess the GTI soldiers on, but I have my doubts about the mk8.
Meanwhile, I would legitimately consider an Elantra GT N-Line as a new daily if the Fiesta ST became impossible to obtain. Maybe a mk6 GTI... or finally build that 4th gen Legacy GT wagon... [rambles on about various car ideas for another 15 minutes].