On a recent Geek. Dad. Life. stream he was showing a chart that graphed the progress of Victory Saber, Unicron and Deathsaurus and currently DS is staying right in step with Victory Saber. In my faulty memory VS was doing a lot better at this point, but seeing it plotted out the two are perfectly matched up. I don't know where he gets his graphs, he says he didn't make them, so here's a snip I made from the stream.
Click it to make it better, the important parts are the solid orange line (VS) and the dark blue line with the dots over it (that's DS). I'm going to guess that the two sharp jumps for VS were from updates (colored models, tier updates), the small uptick in the middle is probably a retailer placing a batch of orders. Of course that big jump at the end was the world wide addition of orders from major and minor retailers and last minute customer orders.
Totally confident in this reaching both tiers, but still not expecting much more past that.
Emerje