Winter with Nate's personality sounds so awesome to me... But at the same token it'd be a nightmare for him considering Nate (who looks like a toddler) would end up "acting his age", begging for piggy-back rides, to play on ice slides and swim in a kiddie pool... Jeez.
I'm still sticking with #NaturaTale for this since it's part of the same timeline, but just a US type of version.
The only replacement I found for Winter with hypothermia is poison ivy from Nate. Ouch...