Yes, for Pro and Team. Pro is $20 per month billed monthly, or $200 billed once a year, which works out to about $17 per month.
On annual billing, Team standard seats drop from $25 to $20 per month, and premium seats from $125 to $100 per month. Max is billed monthly only, and Enterprise annually only.
All prices are in US dollars, exclude applicable tax and are planned, not final. Nothing can be bought yet; when paid plans open, the pricing page shows the current prices, and the news page announces it. To see what each plan includes, read what the paid plans add.