Axiom Verge 2 is coming to the Nintendo Switch in Fall 2020 (Spring for Australia) and will have new characters and abilities, with the same luscious pixel art.
There is not much info known about it so far other than the trailer, exclusivity and a release window. This time there will be a snow based theme.
As of 12-11-19, we do not know if there will be other versions or if Nintendo is getting exclusivity. This would be a great exclusive for the Nintendo Switch family of console handhelds.
The first Axiom Verge on Nintendo Switch passed the sales of the other versions, despite arriving 2 years late after the other versions, so this may be a good move to be exclusive for the small indie studio Thomas Happ Games.