Yeah, it's sad that the most serious and well-done cartoon we've ever had has to go this direction. (ie. more aimed at kids) I'm really hoping the show can hold its momentum and tone while feathering in a few beast characters. That's going to be tough seeing the toys and characters. I'm heavily invested in these classic characters and voices... won't be the case with a bunch of new monster characters.
I think best case scenario, the show has a few one-off shows where they catch or kill some random baddie Predacon by the end of the show... and any other permanent characters added are along the lines of Grimlock, other dinobots, or insecticons. I wouldn't mind a Ravage, either. But if the show just turns into a sudden animal circus... or medieval festival o' dragons... then I'm going to be the first to call it "jumping the shark" at end of season two.
Here's hoping that's not the case.