Hell yes!
We were discussing this the other day and I would love to see it. Not a fan of save scumming personally anyway - as I have observed that people become somewhat compulsive about what they think is the "perfect playthrough" and thus deny themselves the experience of seeing how interesting a game can be (not to mention faster) when you let things take their own course.
Although it should NOT be forced on people playing regular difficulty but it would be a nice option for the higher difficulty settings for the more hardcore players that the game remembers all rolls made before you reload.
Also would LOVE a core-rules mode and tactician as well. I believe the original games also did this and it made the game so much more satisfying.
I am not a fan o SCumming too, and even so, some times I do. After that I just hate myself for doing... (Like eating that cake you know you not suppose to)
So yeah, I would LOVE an option to help me avoid falling for the temptation.
And about "Core-Rules mode", what is this?