Definitely in for Arcee - I’m all in on Bumblebee line. Didn’t bother with Bayverse so far but that Megatron is going to be a temptation and a half! If I got him though, I’d need Optimus.I kind of like and dislike the design. I hate that they steered away from the mechanical robot bit design from the first 3 movies but there's also something about the Knight design that I like on its own.
That said, ROTF Megatron and Bumblebee Arcee DLX is next so you're in luck on that.