Yes, the Skyliner will link Epcot and Hollywood Studios. It isn't a straight shot between them as there are stations at Caribbean Beach and the new Riviera resort. The 5th station is at Art of Animation/Pop Century. Based on the estimates they've shared, travel time between the 2 parks could be as little as 12 minutes depending on how loading and unloading works at the stations and where you actually need to change cars.