I see what you mean and… well, what about a game where you’re not HT, but it is nevertheless about HT?
Imagine a game where HT is constantly near you, annoying you. That would be great 
But anyway… if we get new Monkey Island games, I’d be happy if it went in a similar direction to Tales, but without necessarily being about Guybrush and LeChuck
Could have both of them in a game called “Stan and Herman Toothrot Hit the Road”, where they solve crimes around the Melee Island area.
I don’t think that I would be interested in playing a game about a MI supporting character because, for me, MI supporting characters are not enough “strong” or interesting to justify an entire game dedicated to them.
I would probably play this kind of game nonetheless, but only because it would belong to the MI universe, not because I would be interested in seeing the character as the protagonist.
Maybe the only exception could be Murray. He could be the protagonist in a bowling simulator.
Some time ago, Telltale Games made two poker games that feature characters from different franchises; Sam & Max were among them. I liked this “ensemble” idea and it could be a way to use a secondary character without dedicating an entire game to it.
That’s a Catch 22. It’s not like they’re that way by definition; they’re not really fleshed out right now because they’re supporting characters. 
imagine playing an old man that bothers people and causes them to make mistakes on what they’re doing. That sounds great to me. Bonus points if the man is also grumpy and insults people so much that they hate him, so the only mechanics is to annoy them so they make mistakes, break things, drop things, hurt themselves, and so on.
Reminds me of the old guy with the bird seed. Doesn’t it @ZakPhoenixMcKracken ?
Hoping you are referring to Zak and not to Aviary Attorney 
There was an old guy with bird seed in Zak? I was talking about https://aceattorney.fandom.com/wiki/Victor_Kudo.
I thought of…
…but Victor Kudo was definitely the one!
New article: ‘This Was Like the Manhattan Project of Games’: How Return to Monkey Island Became a Reality - IGN
A lot of great things.
I especially love this part: « “I knew I wanted to start the game right at the end of Monkey Island 2. That was this unmovable block, but that really was the only one. Dave and I spent a lot of time talking about ‘What is Monkey Island? What does it mean to us now? What does it mean to Guybrush now?’ Thinking about interesting stories. For me I wanted this game to be a good solid pirate adventure. I felt like some of the past Monkey Islands had veered a little bit into the silly territory. And I wanted this to just be, ‘It’s a pirate adventure.’ »
And this as well: « I ended with one other obligatory fan question: Will the actual secret of Monkey Island be revealed by the end of this game? Gilbert paused and said, “Oh wow, that’s…um…[laugh]…I don’t know that I want to answer that,” before he added, “I think fans will be really excited and happy for what we did or totally angry about what we did." »
There’s some new information in this!
He says the ending will be controversial as much as MI2’s ending…
And he also says it’s a solid pirate adventure => it is safe to say we won’t see the real world through all the game.
I don’t think Ron revealed secret in his blog and ign interview proves it. It was the summary of the main plot for his third game. Important part was how would characters evolve. Instead of that story , now with Return he will make them evolve.
I ended with one other obligatory fan question: Will the actual secret of Monkey Island be revealed by the end of this game? Gilbert paused and said, “Oh wow, that’s…um…[laugh]…I don’t know that I want to answer that,” before he added, “I think fans will be really excited and happy for what we did or totally angry about what we did.”
So, not unlike the amusement-park ending of Monkey Island 2, then? “Yes, very much” he said with his heartiest laugh yet.
I feel like I’ll have to wait another thirty years. 
I understand his desire of making people speak for years about an incomprehensible ending, but he has already done that more than one time and now it feels a bit repetitive.
Ouch, I think you just called most people here old! 
I interpret this more as “the reveal will be something huge that people would either love or hate”.
I think it’s exciting.
I hope that you are right!
… simply for, you know… anagraphical reasons. 
Unless it is a game about Guybrush in the real world and pirating games for a living.
I’m hoping the ending will have something to do with Stan, like him being in hell, something crazy like that.
I’m not sure I’d like to play as HT, but I think playing Stan could be rad. Imagine for a moment that we’d get to relive the moments he has with Guybrush from his perspective, with appropriate motivation for his actions and a story to connect the dots in between. I mean there must be so much more to him than the salesman-persona he puts on whenever a potential customer drops by.