As we all know from the ending of EfMI, Herman somehow turned out to be the so-long-lost H.T. Marley, and returned to being the governor of Mêlée Island instead of Elaine, so that the adventure pre-ToMI could start.
This event was so filled with plot holes that the entire game's ending seemed like a huge joke, even though plot holes are no unfamiliar element to the MI series.
Nonetheless, my impression of the responses to this finale through ToMI seems to be that "bad ideas should be ignored", and the game can probably go on perfectly well without the return of the four-game hero Herman (even though one of his appearances was merely a puppet).
But am I really the only one who, despite his recent history of odd ideas, wants to see him return in ToMI?
I mean, lost memory or not, Grandpa Marley must've taken a few mental hits from being a lone hermit for all these years, and I doubt he's his normal, completely sane character. A (perhaps travelling) governor who's a bit giddy in the head, sort of.
(All in all, though, it feels like Escape just killed off one character to gain another, the latter not needing a further developed history.)