Reddit will be a Frankenstein like Facebook and will refuse to die. They will find a way to monetize it while also forcing right wing engagement. Right wingers will be thrilled for some time thinking they are now the "cool reddit people"(lol) while never realizing everyone stopped caring.

Individual subs will still be as active as they always were. Mod support will wane. At the end of maybe year 5 you'll look at the site and it will be unrecognizable. Just another captured audience too entrenched to ever leave the platform.

None of this should worry you. Reddit isn't popular because a left wing person owns it. It's political lean is entirely from its users. Changing who owns the space doesn't erase left leaning people. They just go somewhere else. After having used lemmy for some time, I'm fairly confident it will be here. Even if not, wherever it is will be new and cool and away from right wing shit bags. It's almost exciting to think about having a new space to explore.