I'm not a big Fifa fan, but, I can speak from experience with what they did with the PS Vita version. The Vita version was quite faithful to the console versions except it lacked Ultimate Team, so, if the Switch gets that, then, it'll be a small step up from their previous ports. I think porting the Frostbite engine will likely take longer than expected, that's if they're actually doing it in the first place. However, Need for Speed Payback isn't coming to the Switch, so, it's unlikely we're going to see any Frostbite games this year. If they re-release Fifa with update stats next year on the Switch, then, chances are we won't be getting any Frostbite engine games at all.