The Business Chronicle article on 98 14th Street reports that the developers hope to close on the land on April 30 and speculates on potential brands for the hotel such as Ritz-Carlton and Waldorf Astoria. As for the retail, yet again the hope is to attract a grocer, specifically Whole Foods.
It also mentioned that the developers are negotiating with the adjacent property owners to allow from access from 15th to this development. I think this is important to breaking up this huge block and could even help rush-hour traffic on 14th especially if 15th street is extended to Williams Street.