It looks like Manny Cedeno, Ayden Johnson, Jhoan De La Cruz, Cristopher Polanco, Carlos Taveras, Deivid Coronil, Carlos Alvarez are still not signed from MLB's top 50 list.
Polanco was already a guy rumored as signing with the Jays. It's possible they use the extra to try and snag one or two of those other guys. It's use it or lose it, so they may as well back the extra truck up one someone.