I've heard different opinions on this question. A friend, who doesn't seem very supportive of the Resistance but who belongs to the Society chapel, says the 3 SSPX bishops (Fellay, Tissier and Galaretta) intend to consecrate successors at some point.
I'm not sure I believe him, though -- were they do to so, they would be "excommunicated" all over again, and any plans for a "deal" with the Vatican would be impossible.
Is the Society a lost cause? :-\
Yes, the SSPX is a lost cause.
Even those choosing (for whatever reason) to attend SSPX Masses at the present time need to make arrangements for other options. Your SSPX chapel might get closed down eventually, if it's found to be redundant (i.e., there's an FSSP or Indult chapel in the same location)
The fact that the SSPX officially condemned the recent consecrations in the Resistance says everything we need to know. The SSPX has painted themselves into a corner. They can't come out and do a consecration without papal approval now, without looking especially hypocritical and disobedient (and schismatic). They've actually set themselves back.
In other words, if they did exactly what +Lefbvre did in 1988, there would be even more and severe consequences, due to the neo-SSPX's recent official statements and how they set up the narrative.
(I'm sorry if the truth happens to scream that I'm right, but I assure you
the truth came first and my opinions formed themselves accordingly.)