Activision isn't using Toy Fair 2014 to help debut the new Skylanders game this year due to competitive reasons, likely due to their rivals such as Disney Infinity or other potential games that are like the 'bring the toys to life' idea. We're going to have to wait until later on to see details on this new game of Skylanders 4.
It would be interesting if they used Toy Fair to promote the upcoming Waves in Swap Force.
But guys, do please keep the crying and disbelief of Skylanders 4 missing from Toy Fair to a minimum, this isn't a dramafest you know. :3