Al just posted over on MiceAge that the possible dates for Star Tours: The Adventures Continue
It's not announced yet, but official Cast Member Previews for Star Tours 2.0 are now scheduled for May 16th through the 19th. Soft openings for park visitors could begin immediately after that, while the CM Previews begin for Little Mermaid on the 20th. They've gone with the later timetable that was discussed in the last update, waiting for the park to recover from the Pirates Premiere before they begin previewing this summer's new rides.
So there you have it
CM Previews - May 16th to 19th
Soft Openings - anytime after CM previews
Again one has to remember that this is a work in progress and ANYTHING can change at any time. This is just the current info. Nothing is ever certain until after it happens.