I might look up what attractions are under refurbishment, but I wouldn't do extensive research, even if I wasn't a theme park nerd. I grew up going to Disneyland and vacations to WDW, so I wouldn't expect the experience to be so different where I would need to do work heading in.
I'm certain most casual tourists think that visiting WDW or DLR is like visiting any other theme park, just a little bigger. They have more parks to visit and on-site hotels, but I wouldn't think I would need to do much beyond just buy my travel package. Heck, I'd be confused by the need to have a park reservation since nobody else does that anymore.
It is like when I visit New York; I see what plays are running, where is the best deal for lodging, and that's about it. I don't need to worry about apps and travel guides and planning every second. I just go and see what interests me. Then I do it.