An adventurer or villain has reached Middle Age or higher and then somehow becomes immortal (be it by way of Lichdom, Vampirism, becoming a deity, or some other twist of fate). What happens to the bonuses/penalties from aging?
Do they remain and cease to advance, or are they removed entirely?
Does something else happen?
Especially, when something changes the base creature's type to something that doesn't normally get aging categories (such as Undead) how does aging now work?
Acceptable answers can draw from Pathfinder or D&D 3.5/3.0 for this question.
Best Answer
Logic: Yes.
Becoming immortal stops your aging, it doesn’t reverse it. For example, the 3.5 monk class feature, timeless body, which doesn’t make you immortal, but comes pretty darn close, says:
RAW: Yes.
You (Dorian) mentioned lichdom and vampirism, which are both templates. By RAW, you simply add the templates onto the base creature. That means that you keep your adjusted ability scores. It is possible, however, that there is another method of immortality (maybe ony involving time reversal) that reverses any changes due to aging.