Does that mean the Pope will either (1) get to choose his successor, or (2) be a part of the Cardinals who choose the next Pope, and (3) if he doesn’t like the selection, can he revoke his resignation?
He is over 80, so he cannot vote in the conclave
(3) if he doesn’t like the selection, can he revoke his resignation
His resignation is effective on the 28th...before that time, he could theoretically reconsider...after that time, not so much.
No, no and I wouldn’t think so.
No. Because Pope Benedict is over 80 years old, he is not a voting member of the College of Cardinals.
or (2) be a part of the Cardinals who choose the next Pope, no
and (3) if he doesn’t like the selection, can he revoke his resignation? No
I don't complete understand his decision and don't know if it's to be verified or not, but the answers to your question are all no.
No is the official answer to all three questions, perhaps is the actual answer, probably in an unofficial fashion is my opinion. (I am often wrong, so ymmv.)
He doesn’t strike me as the kind of man who leave the succession of such an important leadership spot to the whims of chance.
Probably spent days or weeks in prayer asking for guidance from the Lord.
To my mind, he’s already probably made it clear who he wants, and has probably put wheels in motion to make it so. He’s an extremely intelligent, good, decent man.