There is no definite date yet. I've heard spring for the Railroad, but everything else is being slated for summer. My guess is that's when it all can be expected - sometime after Memorial Day.
I'm hoping the testing of the boats means they'll open them soon. I had heard the island was ready and could have opened at the beginning of June. So if they can get the boats ready, maybe they'll open them both. Though I wonder if there is still too much construction to see. I think the trains need a lot of testing, though I heard they could open as early as two weeks from now. Rumor from Fresh Baked is everything should be open by July 28.
Today we saw them testing both boats, as well as the raft that takes you over to Tom Sawyers island. We also saw people walking around doing something on the island.
I was really hoping the Train would be up and running for our big trip during the week of July 4th, but it doesn't look like that's going to happen. I'll have to get a birthday trip planned for August.