To use an example I did back at the SWO Expansion thread, I do believe Galaxies Edge will reach a very similar problem to what Sesame Street will have for SWO, simply put; of the characters and stories already being represented in the park's (including Anaheim). But, what I do think SWL will have above Sesame Street is actually the aspect that some people were at the fence of.
The fact that they are going completely new, with a new location inspired by the NT.
In a way, this will allow Disney to be far more flexible with what they desire to do going forward with expansion, along with allowing it to tell new stories and new elements in the lore of the franchise. And it allows them to not use pre-existing material as much. At-least, that's how I see this project in general, and why I think Disney will be probably fine in the end with Galaxy's Edge.