Not going to happen. Disney is going to do the same thing to the sequel-era as was done to the prequel-era. Everything you said about the sequel movies is just as true when it comes to the prequel movies. They're absolutely awful. But they built up additional story lines, media, and content around them to the point where people used that content to help bridge the gaps of incomplete writing, setting, and characterization, and eventually had a more positive view of that era in Star Wars. The worst part of the prequels is actually the prequel movies themselves. Disney is very much using their current slate of shows to attempt to start doing the same with the lead-up to the sequel era.
Personally, I don't want The Mandalorian to bridge out and be too much a part of a larger storyline. The Mandalorian excels at its self-contained narratives, as a Space Western serial. There's a natural fit of Grogu to the cloning narrative to an extent, but cramming in all these crossovers, cameos, and connections and placing it into this larger Mandalore arc are negative things that drag the show downwards. If they try and cram more Thrawn, Ahsoka, Boba, Luke, etc into the series it will continue to turn everything into a muddy mess of needless fan service that both alienates more casual fans and makes the universe feel smaller in scale. Let Mando be Mando. Let it do what it does best, the veteran gunslinger protecting a child from the clutches of the Empire in diverse Outer Rim settings. Don't turn it into some grand scale epic or turn Din into a pivotal fixture of galactic history. Let us live in the Star Wars universe, don't make this into a show that actually changes the course of the Star Wars universe.