Dev Team's new jailbreak won't be \"final\"

MuscleNerd responded today to a user on Twitter, who asked him about the new jailbreak, saying that the jailbreak solution to be released is not final. What does this mean? I can only assume that: either it is an exploit that can be used in the future regardless of what firmware Apple releases; either Dev Team has several exploits and the one that will come out now is only one of them, and in the future they will use the rest as well.

They are only guesses because the Dev Team is not in the habit of giving details about the jailbreak solutions they are working on, but we know for sure that: it will be an untethered jailbreak solution and it will be as easy to use as Spirit. Unfortunately, it will probably require phone activation, so many of you won't be able to use it without the card.