I don’t think 1 or 2 is true, it looks like it’s a mixture. I think they are going to try to pay some lip service to liberalization that has occurred in the major urban areas, they will probably continue the long-held practice of ignoring or minimally involving themselves in the day-to-day life of rural tribal areas (this is basically the only strategy that has ever seen such areas settle down vs become violent and hostile to the central government, whomever that government is.)
They have a leader of the Haqqani network in the government they have formed, which is a bad sign because they were always viewed as being more of an international terrorist group. I think the Taliban will likely actively fight ISIS-K–the ideology of ISIS-K is not actually compatible with Taliban governance. I think it’s hard to predict what they will do with groups like al-Qaeda, if they allow them to build training camps and etc with impunity, then it will all but mandate turning Afghanistan into Yemen–a country regularly targeted by U.S. drones and cruise missiles for exactly that reason.
It’s honestly very hard to say what will happen, keep in mind that the Taliban didn’t really rule from 1996-2001, they become the dominant group in the country in 1996, but were still mostly operating as a Mujahideen group. They were actually only just starting to build out some nascent bureaucratic functions of a real state by the time we invaded. Before that things were very ad hoc and chaotic in Taliban Afghanistan, with rules changing based on what the Taliban commanders in the field said they were, and that could change based on who was in charge of local Taliban forces.