The FIM just released the calendar for the World Supermoto 2014 season:

Provisional Calendar World Supermoto Championship 2014

Date	Track	Country
20 April, 2014	Rivesaltes	France
11 May, 2014	Pleven	Bulgaria
18 May, 2014	Arad	Romania
1 June, 2014	TBA	TBA
15 June, 2014	Sosnova	Czech Republic
6 July, 2014	Franciacorta	Italy
20 July, 2014	Arensburg	Estonia
14 September, 2014	Triente	Italy
5 October, 2014	Mettet	Belgium
12 October, 2014	Pleven	Bulgaria (Supermoto of Nations)

Source: Speedweek.com