You can now planeswalk to more than just different planes. Even the barriers of time and different timelines are nothing to you. There is no method that can now restrict your planeswalking powers. You can mentally leave and explore planes without actually planeswalking for reconnaissance purposes and to get a better idea of where you might want to go.
Repositioning
You can move entities within your constructed planes. This includes people, objects, and even locations with enough mana, though vastly reduced than would otherwise be needed.
Scouting Force
You can create your summons within any plane you could planeswalk to. However, because they are cut off from you and the majority of your mana, the summons will be weaker, and are more likely to dissipate faster than they usually do.
Singularity
Through mastery of your soul, you can create multiple bodies to perform multiple actions at once. These bodies can be on different planes simultaneously, but are limited by your own multi-tasking ability.