To be honest, I don't know what this means. It seems to me that the SSPX is in schism as long as it insists on remaining outside the regular lines of authority of the Catholic Church after having consecrated bishops against the Pope's explicit command not to do so.
I agree that many of those who attend services at SSPX churches do so in good faith, and I would like to see the Society come back into full communion with the Church.
It seems to me that the major issue is whether the Church is willing to regularize these bishops and priests, and whether it is willing to permit them to continue saying the Old Order Latin Mass. I think it was a huge mistake to abandon the Latin Mass and to allow liturgists to play arbitrary games with it, abandoning thousands of years of tradition.
Some of the regular bishops appear to me to be heretics, but they are not in schism. The whole business is regretable. I know that Pope Benedict has indicated he would love to go back to the old rite, and to the old orientation of the priest ad orientem instead of ad populem. But the question is, how to accomplish this without causing further schisms and breakaways. It's a mess. But it would be a good start if the SSPX can agree to come back into full communion with the Church.
It means, imho, we are moving towards a solution. The SSJV in Campos shows how easily the parts reintegrate once the leaders agree. Card. Hoyos is rumored to be told to take this task up full time. Until now this has been an almost 'letterhead' commission, now HH appears to want action and resolution.
Deo Gratias!