So new chapter is up, a few interesting developments this week, first off we have the reveal that he indeed did not see the two members, so it's possible they may not be dead, or that they didn't pass on their powers onto the next generation completely, or what I think is likely that Deku has not learnt about the abilities they possessed, (I have been wondering if it is possible that All Might never really mastered one for all, instead used the power in it's raw form, was it possible that other wielders of the power used it differently, and thus explain how no one has clicked on the the power gets passed on from one hero to the next.) Then we learnt the All Might never was in contact with the previous members, and they never talked to him, which does beg the question why Deku? Is he somehow blood related to the original wielder, or was it just the fact All Might was so powerful he never felt the needed to meet them.
As for the new recruit, I have to wonder if he was added to the class as a spy for the school to find out if a student is the one leaking information, his ability would make it possible.