They need to bring back the previous actors/characters. I don't understand why Leto would be the "main character" of the film.
"Starring" meanz he's in a basket of main characters... but not necessarily "The" main character. We also don't know if he's the good guy or the bad guy "for sure"... but he fooked up a couple yearz ago & revealed his name as "Ares"... which is the currently last known working title for the movie... so I'd assume he's the new computer program which is either in the real world now as a being/machine or virtual representation. At one point they had a T3 scenario where the machine world takes over, & Ares was a robot/being leading that charge... but that's already been dun & so I'm assuming that's why it didn't see the light of day.
My hopes are that they just keep him virtual... but I could do with him inhabiting a physical body. I just don't' want to see him leading an army of robots down the streets T3 style, lol. imo... lets get him into the virtual system & chase his ass down "Lawnmower Man" style.

Sheet... once he gets into the system he could hold the world down to his needs at the threat of nuclear attack. That may be too scary for people though. I dunno... there's all kinds of ways they can go with it once he gets into the system. Maybe he makes it elegant & becomes a multi trillionair in a matter of minutes, takes over wallstreet, & hires mobs of people to do his bidding... lol. That would be a nice twist. You don't need a fooking army of robots if you got Trillions of dollars to pay flesh & blood people to do your bidding. I like that.
How about he makes the world a better place as long as you follow his criteria. How'z that for a fooking twist. Not really much different than the superpowers are doing to us now tbh. & that opens us up for the conclusion of the movie based on how it all goes wrong & then the follow up movies otherwise known as "The Matrix Trilogy." lol.
To your point though... yes we need Sam & Quorra's actors back for this & last word is that they are still on board. Lets find a cool way to throw Jeff Bridges in there too with him glitching into the newly evolved program, yeah? No matter how advanced this AI program gets... it was still originated by Flynn.
This script has been re-worked for a decade, but earlier scripts had Quorra as a "Main Character"... & on the real... how could you not. Previous scripts have mentioned there's a run on the ownership of the company as well as "Ares" who I'm assuming would be the upgraded version of "CLU."
(ie... Ares > CLU > MCP)
ie... the next evolution of the program before it eventually becomes the Architect of the Matrix movies.

(my hot take

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