Which statement correctly explains the aspect “Laʿalla and a subsequent subjunctive” in the example “لَعَلِّي أَحُجُّ فَأَزُورَكَ”?

Inshāʾ and Tamannī: Requests, Wishing, Exhortation, and Reproach

• Requesting and non-requesting inshāʾ — Requesting and non-requesting inshāʾ.
• Laʿalla and a subsequent subjunctive — Perhaps I may perform pilgrimage and then visit you.
• Grammatical form of layta — Would that youth returned.
• Literal versus transferred force — Would that / whether / if.