Well, its taken longer to get to a first release than we'd expected - but that's no surprise I guess.
I've decided that pretty much every new carset or track I make will be part of NG, and given that NG will (eventually) have a rapid release cycle there probably won't be much point in making new stuff available here for download. The 1936 Grand Prix carset will be part of the first NG version, as will an updated (yes again!) Supercars set.