The other thing I was considering was that now that Skylanders and Disney Infinity were killed off, that shelf space, reserved way back when for Guitar Hero and Rock Band is still there, so now that it's just one game, it's less of a fight for that room, so there's less of a need to dump it all.
Target and Walmart still have tons of Lego Dimensions year 1 and 2 in store. That's not a good sign. Retailers are not going to order or greatly reduce order of another year even if it would come out.
Once a while I will check 99c store to see if there is another surprise. I guess many of us do or waiting for next big sale to fill the slots. If the toys can't be moved in retail price, don't think there is a future of it.