Here is an excerpt from the article PAPAL ELECTIONS in the Catholic Encyclopedia.
"A layman may also be elected pope, as was Celestine V (1294)"
LordPhan injected something else into my scenario that I did not say, in order to try and make it look disordered. Look again LordPhan, my scenario deliberately contains a bishop in order to retain the fullness of apostolic power inherent in a person. On the other hand, ordinary jurisdiction is not attached to a person, but to an office. Here is from A Catholic Dictionary:
"JURISDICTION, ORDINARY. That which is attached by the law itself to an ecclesiastical office."
"JURISDICTION, DELEGATED. Jurisdiction which is committed to a person and not attached to an office."
"APOSTOLIC SUCCESSION. i. The authoritative and unbroken transmission of the mission and powers conferred by Jesus Christ on St. Peter and the Apostles from them to the present pope and bishops. ii. The uninterrupted substitution of persons in the place of the Apostles by the valid consecration of bishops and transmission of holy orders...."
Apostolic succession is retained both by there existing the office of the Bishopric of Rome (where ordinary & universal jurisdiction is attached), and the bishop in my scenario is validly ordained and consecrated.
It is known that bishops had been consecrated behind the Iron Curtain and in Mexico in the early 20th century, without papal mandate, because of the extremity of their situations - primarily not having access to communication with Rome, and the clergy being exterminated in those places. Those bishops were not condemned; they remained Catholic.