The old policy still holds. For reference:
TERRARIA VIDEO POLICY
The video and/or description must not link to hacked/cracked clients or offer the game to others for free via such clients. You may post videos of Terraria with ads and as a YouTube Partner as you see fit. We do not require any reimbursment for ad revenue.
As a courtesy, links to Terraria.org would be appreciated, but are not required.