So formula e has confirmed 8 manufacturers for next season, as the series moves away from a spec car. I believe some are new, but only two of this seasons teams aren't confirmed. The current lineup isn't final though, so more may join. In other news, they've announced an intention to drop the two-car format for the 5th season. I don't know whether teams will be allowed to make the transition earlier though if they feel it's possible. Saving a minute in the pits over a relatively short race may be seen as enough to overcome a lap time deficit. The battersea park track for the season finale has also been confirmed by the BBC, not that we haven't known that for months though.