How would you go about remaking Ruby/Sapphire/Emerald

For me...the biggest problem I had with RSE was the amount of water routes and where they were placed in the game. I found it somewhat annoying that the vast majority of the later content was all water based. The travel, the scenery (I like immersing myself into the poke-worlds), the battles were all water. Made it tougher for me to train stuff that had disadvantages against water pokemon. And it was all in the last 2 badges of the game instead of it being broken up into multiple sections.

I know that asking for the game to be reworked so that all of that water doesn't hit you all at once is probably too much...but there has to be a way that they can make it less about water.