I've talked to some friends of mine: they are currently working in the travel industry. They all say the same thing basically: they all think that this project is promising but they are not 100% sure it's gonna be easy to gather enough investments for an ambitious project like that.
More than just TravelBlock, the entire blockchain project is currently in a difficult situation to raise investment. If Bitcoin can continue to grow for half a month, it may vigorously advance the completion of this project.