^No. That site was originally supposed to have a 30ish story residential component and a rumored grocery component, but that was nixed when DunnhumbyUSA decided to occupy the whole of the site for their ever expanding business.
This is quite possibly the result of that tower not happening. It would make sense.
As for a building boom, it really is picking up in recent years. Residential conversions are starting to happen in a lot of the older office buildings and new construction is also beginning to pick up as well as the continuation of mass renovations of older residential buildings throughout Downtown and Over the Rhine.
It feels like only a matter of time before we start seeing more buildings of this size spring up on vacant lots and that's going to be a wonderful time to be in the city. Well, it already is a wonderful time with all the progress, but it's only going to get better