Well, according to the latest interview by Mr. Maddox (it's linked in the questions thread) and after the necessary "decryption" when using online translators, i think that the SoW engine will be a huge step forward and may allow 3rd party developers to give us something like that. Honestly, if SoW is half as good as i expect it to be i'll still go out and buy it. The important thing is to make a solid base to expand upon and make it easily and legally moddable, to an extent that you can also safeguard against cheating.
If you take the time to read that interview, you'll see they are really working hard on that aspect of enabling people to adding new content in the engine over time. Maybe SoW will not be something spectacular as far as the amount of flyables go, but i'm pretty sure it will shake up a lot in a sim's ability to expand. The guy talked about the possibility to add player controlled patrol boats and subs for online play at a later date, or even create pay-to-play spin-offs from the original engine. Maybe the SoW engine is not so much a game, as it is a modular operating system, the Linux of simulators. We'll see. Until then we'll be getting busy with DCS:BS and RoF, so it's bound to be a good year for all of us
