I made two comments o this post. The one linked above discusses Daughters of Darkness, a 1971 film in which John Karlen plays a character who at first seems to be living the fantasy life of young men of the period, but who by the end turns out to be uncannily like Willie Loomis. He even has to dig a grave under the supervision of a vampire and the vampire’s short-haired female friend.
In the other comment, I explain my theory of how the events of the “Meet Gerard” arc (which includes 1995, 1970, and 1840) are undone by the end of episode 1198.
Dark Shadows Commentary 