I wonder some.
MK will always be busy, simply due to the amount they have to do there, and it is really the main draw. Especially with the add of Tron - redo of the speedway, and perhaps....some other add instead of the theater.
But DHS will be a HUGE draw if SW:GE is as immersive as it looks...just HUGE. Add Mickey ride and TSL for the little ones...and it moves up the list of places to go.
I wonder if the adds to Epcot will be enough - Rat and UK ride and GotG isn't a whole lot to pull from SW and MK[/QUOTE
I guess it depends on what all ends up happening in total. We know that the access to park is changing with the Skyliner. They already have Frozen Ever After and the Three Caballeros. To this they are adding Ratatouille (big time family E-Ticket trackless ride), a UK Mary Poppins C Ticket dark ride, and an improved China pavilion movie theater experience. They also just updated the American Adventure show. Martin has already hinted that there are also upwards of 3 more restaurants being considered for World Showcase and the Odyssey is being refurbished. Also, don't forget that almost every insider has indicated that Brazil is definitely coming as some preliminary work has already started for this backstage.
Now, in the past few years Test Track and Soarin' have both been updated, along with Mission:Space. Now add a Guardians of the Galaxy indoor coaster and a new space restaurant. Martin has been hinting lately that the WoL building might now be getting some consideration for an attraction. The entrance, fountain, central spine and the Innoventions areas are all being rumored for a huge aesthetics upgrade. Also, a new resort might be appearing near the front of the park or off to the side a bit.
I can't believe that SSE and Imagination - in the mid to long term - are not in the plans. Martin and Magicfeather have also talked about a significant upgrade to the Living Seas Pavilion. And none should forget that Illuminations is being replaced.
All of this actually changes the Epcot park experience significantly. SW:GE will no doubt be a HUGE draw. But I think that this will do wonders for Epcot.