The Only Idea that to me Works for JP4

The only plot that makes sense to me and this is just the basic rough idea of it is that going on the second book majorly (the second movie going a different way then second book did). The idea I have is that because the movies didn't kill of John H. he has to be in the 4th especially if the rumors of the movie taking place in between the first MOVIE and second movie (not the books). So my quick summary of the plot is that good old Dodgson like in the second book gets info on the second island and gets a team to go to the island to find some DNA samples and because once again like in the second book the buildings there use a advanced generator technology the building after the few years its been empty(people at least-also remember its only a few years because the first book and second book are 7 years apart and the films suppose to take place between then) the DNA samples could still be salvaged. Now John H. finds this out somehow that Dodgson is trying once again to steel from him and he gets Alan, Ellie, Ian, back together to explain that they are the only ones that know the hole story of the island and they are the only ones that can help stop Dodgson. Now that being said how they get them on the island again, how they get kids on the island(this must happen) and the plot of them on the island and getting off the island is suppose to go I don't have the slightest idea, but if they want to make a new trilogy then they need Dodgson to get off the island alive with DNA samples and for the future movies to be him creating some dino's in a new location to introduce a new idea of where these animals could be located instead of an isolated island. To me this is the only plot that takes place between the two movies that works and can make sense to get the group together and to get them on the island in a way that somewhat makes sense. So my question is can anyone fill in my blanks? How they get to the island what happens there and how does Dodgson's team get the DNA.(This is without killing Ian, Ellie, or Alan or the kid/kids that end up on the island, or Dodgson, but kill some members of Dodgson's team, and possibly new members of Alan's team, and please when this movie comes out if Ian is in it he needs to have more conversations about chaos theory because that is such a major part of the books they need it in this new movie even more then ever.)