It is just a rumor at this point, but Screamscape has heard that Creature Technology may have been hired by Universal Orlando to make some more large scale animatronic creatures for them. Creature Technology was the group Universal hired to build the new giant Kong figure seen in the Skull Island attraction and if the rumors are true, the group could be working on building some new dinosaur figures for Islands of Adventure. I don't know if these are for something new, or if perhaps the time has come to upgrade the old figures in the River Adventure ride. With a new Jurassic World film coming out next year, the timing would be right to perhaps introduce some new dinosaur encounters into the ride.
Sounds like they're just guessing what Creature Technology was hired for... It could be just as likely they were hired to create Donkey Kong AAs for the Nintendo ride. Or even fantastic beasts for a new HP dark ride coaster. So no telling really.