1. just2good is suggesting that the gaming aspect of Dimensions is done. It was supposed to be a 3 Year endeavor. Wave 7.5 just came out. We are in the middle of Year 2. There was originally scheduled a Year 3 line (potential properties unannounced).
2. Over on the Inside Dimensions podcast, they had some insight to the 99 Cent Store acquisition (this is me semi-quoting them): According to them, there were 478 pallets (each pallet containing cases of sets) that the 99 Cent Store acquired. A distributor of toys decided to liquidate their inventory (the 478 pallets) of Dimensions. Big Lots, Dollar Tree, Ross, 99 Cent Only Stores - they all have bid on the products. In this case, 99 Cent Only Stores won. This is how those stores often acquire a number of their products (from distributor liquidation). What you see is what you get with the 99 Cent Only Stores. Basically, LEGO way over produced Year 1, and don't expect to see the same for the Year 2 products.
3. Vortech was the big baddie for Year 1 in Dimensions. There is no minifigure for him (yet).