>>2034315/w/ could stay blue but be lax about blue-board rules, allowing staff to delete excess lewd if they so desire and otherwise let the board be.
Or /w/ could turn red with a similar no-obvious-porn-threads rule that /bant/ has. For the months it's been up, /bant/ has been more SFW than /w/.
Or /w/ could add spoilers for lewd (and story spoilers).
NSFW is kind of a fuzzy concept. 4chan's definition seems to be that pink bits are too much, but I doubt any wallpapers (still) in this thread would be received well at the average workspace, if any images on the entire board.
Also, for the mod that's going to check back on here: There's plenty of NSFW artwork all over the board, happy treasure hunting!