And preordered!!
I already preordered the HISS/Megatron, so this was a no brainer.
I am surprised they were able to get the AWE, with it's low profile, to fit a robot mode AND still seat figures. Great work.
As for Bumblebee, it was to be expected. The HISS/Megatron reveal also revealed the box which had a blurb about the next collab. It basically said things about a scout, and his "sting" which were dead give aways. The stream also revealed that they are working on more Joe/TF collabs so we can expect more in the near future.
Since this is a collaboration with Transformers there is some need to bring in the big guns on both sides. The Transformers, according to those with some knowledge, have a core group of 7 characters that they try to fit in to every line/media whenever possible. They are characters that crossover from TF to general audience awareness. So those are the characters most likely to be attached to the crossover.
They are:
Megatron (HISS)
Bumblebee (AWE)
Optimus Prime
Grimlock
Starscream
Soundwave
Devastator
Now that isn't a hard and fast rule, but the reality is that those are the characters the average person/fan would most likely mention if asked to name a Transformer. So to put them into the crossover with Joe means they more likely to draw in other fans outside of Joe and TF.
Personally I could see Starscream as a Rattler, or Night Raven. Prime is tricky, but to match up with his expected form (cab/trailer) I could see the HAVOC or APC. Either way they will probably be pricey and more expensive than even the Megatron/HISS. Grimlock, Soundwave and Devastator all seem like long shots to match up with a vehicle, but you never know. Outside of that 7 Jetfire is a good possibility, along with a Skystriker as Pete mentioned.
Anyway we have some time before we see the next one so who knows.