I saw on IGN that Bates Season 5 is scheduled to premiere some time in February (exact date not known yet). This is different from previous seasons, where they premiered in early to mid-march.
February (Exact Date TBA): Bates Motel season premiere (A&E)
Have you got a link? There's nothing about it on Twitter (either on IGN's Twitter page or Carlton Cuse's and Kerry Ehrin's Twitter pages)
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"Jazz hands!" - Dr. Algernop Krieger
After doing some further research I've gotten additional links which seem to confirm that February is in fact the premiere month (including one directly from Kerry Ehrin on Twitter). I've posted them all here for you.
1. From Kerry Ehrin on 12/29/16 in response to a fan's Q about the premiere:
https://twitter.com/KerryEhrin/status/814489602887036928
2. An article from Yahoo on 12/22/16: (This was the only article with an actual date, and not just the month).
Bates Motel's fifth and final season premieres on Feb. 20...https://www.yahoo.com/tv/16-hidden-gems-binge-over-slideshow-wp-140525909/photo-p-b-length-b-4-photo-140525611.html