The following is a quick overview of the 2022 Niche snowboards lineup.
First I will look at any new boards for the 2021-22 season, and any old 2020-21 boards that aren't returning with a 2022 model.
Then I'll place each board into the categories where I see them fitting best.

New 2022 Niche Snowboards
The new boards for 2021-22 are:
Exiting 2021 Niche Snowboards
All 2021 Niche models are returning with a 2022 model.
All 2022 Niche Snowboards by Category
I have categorized Niche's 2021-22 collection below. This is according to the categories here at SnowboardingProfiles.com and not necessarily the same as how Niche might label them.
Of course these are only broad categories as every board is different, but this is a rough guide.
NICHE BEGINNER SNOWBOARDS
I wouldn't class any Niche board as being strictly beginner. The closest would be the men's Wraith and the women's Minx.
NICHE PARK/FREESTYLE SNOWBOARDS
Men's
Women's
NICHE ALL-MOUNTAIN-FREESTYLE SNOWBOARDS
Men's
Women's
NICHE AGGRESSIVE ALL-MTN-FREESTYLE SNOWBOARDS
Men's
Women's
NICHE ALL-MOUNTAIN SNOWBOARDS
Men's
NICHE AGGRESSIVE ALL-MOUNTAIN SNOWBOARDS
*No Niche boards match my definition for this category. The Story is very close though - it's on the more aggressive side of all-mountain, but not quite enough so to be in this category, IMO.
NICHE FREERIDE SNOWBOARDS
Men's
NICHE POWDER & SHORT/WIDE SNOWBOARDS
Men's
Women's
NICHE SPLIT BOARDS
Men's
NICHE YOUTH SNOWBOARDS
*Niche don't make any youth boards
Summary
So there you have the 2022 Niche snowboards.
Not a lot has changed for 2022 - and it's still a small line. But within the small line, there is a good variety.
Old with the old
Everything from 2021 is returning with a 2022 model.
In with the New
Niche have brought in their first Splitboard - the Fathom. It's the only new board, but expands their line into the splitboarding realm.
Changes to Existing boards
As far as I can tell the 2022 models of existing boards are identical to the 2021 models (with new graphics of course), including sizing options, so the Fathom looks to be literally the only change in the whole line up.
For all of Snowboarding Profiles' Niche reviews, check out the link at the button below.