Whether it’s to close out the Jurassic World series in total, or to help set the stage for the next evolution of the franchise, having Jurassic Park’s legendary characters should be a temporary measure, rather than a long term strategy for continuing the trajectory of the film series they helped build.
To focus solely on their characters would be detrimental to everything built on the back of Owen Grady and Claire Dearing’s adventures thus far, as well as the entire Jurassic series.