Possible.
Here is how.
Act1, is easy you can simply do it the old way.
Act2, you always had to do it before you still have to do it now the only diff. is you need to go in arcane kill the summoner.
Act3, there is two way to do this one.
1) Do council quest in order to be able to take portal to durance. (dont forget to talk to cain after council are dead)
2) Join a game where the orb got smashed and run in the stair from travincial. You then make your way in durance level 1 and 2 till the waypoint. After you get waypoint make a game and you can use the waypoint to mephisto and do your quest. (you cant take portal other then your own to durance)
Act4, still the same.
Act5, you need a specific level to beat ancient and you do need to beat ancient in order to access worldstone. But, you do not need to be in worldstone chamber to get the quest complete from baal death.