How long do the mobs last when new lands open?

[TheGuyThatMakesSwords]

Forever. You see, the crowd level will simply INCREASE .

 

[justintheharris]

Well I haven't seen Slinky Dog Dash with over a 2 hour wait since July 3rd so... Granted I haven't been avidly monitoring its wait time but when I open the app, the wait hasn't been as long as Disney was probably hoping.

 

[Po'Rich]

Really I been there and it is junk.
The scenery, plastic alien flowers and fiberglass mountains who's support structure is not hidden at all.
The whole TWO !!! attractions, river ride is extremely boring and short.
The simulator is just plain dumb wave your arms like idiots so you can be calibrated, then it lasts for like a minute tops after a two hour plus wait.

Please tell all of your friends. That way, the lines will be shorter when I visit.