They could spawn tp to towns. Just set invalid(or baal quest) questflags to these location so you can't return. TBH I never tried doing that but code/plugin to spawn portals is here. That's a fine solution but for a major patch.
Can you post which quests should get this? These in a2 and a3 that require hiting/opening chests in my opinion couldn't spawn any tps to town. 2nd Juggernaut/a1 tower orb/Izuall/Nihla/ could spawn extra port. Well worth checking. I'll grab some tools and more knowledge first.
blue_myriddn wrote:
its a neat idea that has been discussed before and generally viewed as not viable for implementation.
Och...