Indeed, there are a lot of things they have that are really good now that we don't know about... at least I assume they do.
It actually is only rumor that the SR-71 is Jetfire, but I do hope and believe it is. Regardless there will be an SR-71 transformer. The main reason the Jetfire bit is unsubstantiated is because the SR-71 prop was seen with Decepticon symbols. However Jetfire has been an unstable character as far as allegiance before. I am speaking more to his many incarnations in the G1 comics, because in the G1 show he was called Skyfire and was radically altered so as not be sued by... heh... Harmony Gold and the Robotech people... of all people to sue over the VF-1 design.
As far as the Jetfire movie bit, I could believe the reason for the Decepticon symbols are perhaps the character being undercover as a double agent or spy.
Enough of that though as this is a Macross forum and not Transformers.