Okay, better take on DBGT since I plan on rewatching it in the near future.
- Make Pan viable and not a prop for Goku to rescue. Give her at least SSJ. She's 10 not an angsty teen, for crying out loud.
- Do not make Goku a kid with the wish. It's weird to have a 52 year old man in a child's body.
- That being said you can scrap the whole first half of the story. Come up with a better reason for them to run into Baby and company. Start things off there.
- Have Goten tag along on their adventures instead of worrying about how he's going to get laid.
- Keep just about everything the same with SSJ4 and Baby Vegeta. Scrap that bull shit with the Blutz wave machine. Just let Baby Vegeta figure out on his own how Goku transformed and replicate it.
- Scrap Super 17 arc. It's stupid.
- Shadow Dragons can stay but make the weaker ones more of a threat. Also, bring in the other Z fighters to be involved in the hunt for them. Maybe even Yamcha could handle one.
- You must absolutely keep Dan Dan Kokoro Hikareteku because it's perfection.
- Make Pan viable and not a prop for Goku to rescue. Give her at least SSJ. She's 10 not an angsty teen, for crying out loud.
- Do not make Goku a kid with the wish. It's weird to have a 52 year old man in a child's body.
- That being said you can scrap the whole first half of the story. Come up with a better reason for them to run into Baby and company. Start things off there.
- Have Goten tag along on their adventures instead of worrying about how he's going to get laid.
- Keep just about everything the same with SSJ4 and Baby Vegeta. Scrap that bull shit with the Blutz wave machine. Just let Baby Vegeta figure out on his own how Goku transformed and replicate it.
- Scrap Super 17 arc. It's stupid.
- Shadow Dragons can stay but make the weaker ones more of a threat. Also, bring in the other Z fighters to be involved in the hunt for them. Maybe even Yamcha could handle one.

- You must absolutely keep Dan Dan Kokoro Hikareteku because it's perfection.