- For this idea, we cut to the end of the Frieza Saga when Mr. Popo - on Kami's instructions - has used the wish to Shenron to revive everyone on Namek killed by Frieza and his men; this reviving Vegeta but also all of the Namekians, most notably Grand Elder Guru and Dende.
Sure enough, Dende - under the instructions of King Kai and Guru (as well as Goku's extra request) - wishes for everyone on Namek to be sent to Earth apart from Goku and Frieza.
- This time when all the Namekians are on Earth, Guru telepathically requests for Kami to come to him while he still has his strength. Sure enough, Kami uses the Teleporter on the Lookout to reach the rest of the Namekians; Guru calling both him and Piccolo over to him.
Guru proceeds to explain that while he is saddened that the "son of Katas" split like this, he does proceed to thank them both for their actions; Piccolo for fighting Frieza directly despite the danger that the Tyrant represented, and Kami for reviving his people with Earth's Dragon Balls - thus their individual actions gave their people a chance to continue on.
- With his time in the world of the living coming to a end, Guru offers a final gift for them both; Placing his hands on their heads as he telepathically shares his own memories of Katas to his sons. This helps reawaken some of the dormant memories both Kami and Piccolo had of their father back when they were the Nameless Namekian and before they got amnesia (similar to how Goku would later recover his own memories).
With that, he also proceeds to draw out their dormant power - increasing the power of both of them. While it's not as potent as Old Kai's Unlock Ability or Shenron's Potential Unlock (plus the "little extra"), it's still a power boost.
- Before his death (with Kami assuring Guru that he would keep his body after death), Guru bids goodbye to his children - with his final hope for Piccolo and Kami been that the two would one day "find their unity" again.
So, with Kami and Piccolo having had a power boost from Guru thanks to him drawing out their dormant power, how do you think the timeline would change?
Curious to see what you guys think.