My_Mind_is_18
And if you don't want to send Nobita to other universes,just continue the plot with movies taking bigger role.(Note-He should also be on his home planet just doing his daily activities.But this time he should be extremely talented at everything.He should have extremely good qualities such as-extremely high intelligence,extremely high creativity,extremely high wisdom,extremely high intuition and extremely high imagination and more.)
There's also an another idea i have:Make Nobita immortal.He should go through universes and get op powers.And finnaly,when you think it's time to send Nobita back to his home universe,send him there with a body of an 10 year old.(His muscles should be still the same and he should have all the memorys and power and abilities.)