The 05/03Z NHC update did adjust the track a little to the right - and straight through the passage without landfall. The 05/00Z GFS is now coming in and it too takes Tomas straight through the passage between Cuba and Haiti. Tomas has indeed developed a better structure this evening and if the center stays over water Tomas could get up to hurricane intensity again.

ADDED 05/0440Z: Perhaps feeling the influence of the rapidly approaching front, Tomas has moved almost due north again over the past couple of hours. This increases the likelyhood that Guantanamo Bay, Cuba, is going to experience the brunt of the winds in the early Friday morning hours.
ED