From page 207 of the MM,
A character who becomes a lycanthrope retains his statistics, except as specified by the type of lycanthrope. […]
Werewolf. The character gains a Strength of 15 if his score is no longer higher, […]
If any PC had a Force less than 15 and obtained a Force of 15 in this way, would they retain Force 15 if the curse were eliminated, p. Eliminate curse?
The other properties clearly seem to be eliminated, at least RAI, so I would expect this to be too, but I'm just asking for clarification, since changing an attribute is a bit different from getting features.
There is also the most complicated case of taking an ASI while affected by the curse:
Suppose a PC has a Base Force of 12. They become a werewolf, so they gain a Force of 15, then level up from 3rd to 4th and increase their Strength by 2 points.
- Is your strength now 17?
- Do you stay in 15 because $ 12 + 2 = 14 $ and $ 14 <15 $?
- If their curse were eliminated, would they have a Force of 12, 14 or 17?