Yeh, I'm not sure why funding would be an issue just yet. The real big delay right now is waiting on the new arena to be built so the old one can be torn down, then waiting on the expansion of the existing convention center over the old arena space. This will take several years on it's own, so 2022 or so seems about right.
In the meantime, we have several other hotel proposals that are going on and atleast one is under construction (though it's only 8 floors, the largest proposal I've seen is
14)