It has been hinted. But do we have online for BBS yet? No one knows. Online doesn't mean Ad-hoc, it's means online, infrastructure whatever. In the E3 demo there was an Online option barely visible if being watched on Video. Recently a German pre-order bonus was discovered with this description:
Four online modes for up to 6 players
Wouldn't it simply state Ad Hoc or something similar if it wasn't online? It is possible we might get an infrastructure for BBS.