That would be interesting if true, because Tom Hanks is notorious for not doing voice work for merchandise, non-feature projects, or amusement parks.
Whenever you hear Woody speak in the parks or on a tv commercial or a video, it's not Tom but his brother Jim Hanks, such as here for the Wall-E superbowl spot.
Fun fact: Jim and Tom are so close in appearance that Jim body doubled for him for the running sequence in Forrest Gump...and that's part of why Forrest grows the giant Duck Dynasty beard, to help hide the switcheroo.