I'd like to see a prompt suggesting players to add a last will, especially if they're new. I've seen too many dead investigative roles without last wills, and when I look back I see that they had found mafia members or neutrals and the like. It appears as though they either did not know last wills existed, or they did not know how to use them. I simply feel that it would be beneficial to all players to have a reminder of using a last will.
This idea might be a bit overpowered, but I would suggest a host option revealing all night actions of a town member in their last will when they die. It would save time having to type out at night when you don't have much time, or writing out results in the day instead of typing. Thoughts?