I have some toons with builds that didn't work out, but have investments (bank space, tomes, etc) that I don't want to discard. My only current option is to plow through to 20 and then TR.
If Turbine offered a do-over reinc that let me start over at level 1 with any race/class, preserving past lives, epic destinies, etc.
It would be similar to a TR that didn't award any of the benefits (no past life, no increase in open quest difficulty, no increased stats, etc). The main purpose of this would simply be to start over without throwing the character away.