George should have made a Sequel Trilogy in the late 80s/90s, before he made the Prequels.
There should be more giant monsters in the Star Wars universe.
Modern Star Wars aesthetic has gone too far into bleak/grimdark territory, especially in content closer to the OT era (Solo, Fallen Order, Mandalorian, etc.). One thing I did like about the Sequel Trilogy, especially TFA, was how vibrant and colorful it was, rather than just grey and washed out. Also, Lucasfilm shouldn’t be too afraid of showing nicer looking, more developed planets like Coruscant. Not every planet needs to look run down.
Star Wars should place more emphasis on nonhuman main characters.