Quotes from the Q&A:

Will they produce Flareup? They'll offer the 3rd eventually. But when she is released, there won't be instructions to combine her.
I really hope Hasbro won't be cheap. I fear they'll abandon the 3rd mould and just release the 3rd bike as a repaint of the other 2 and so they end up not being able to combine.

I like the Human Alliance, but what about Decepticons? Definitely a chance, and hopefully in the future they will have more opportunities beyond Barricade.
AWESOME.

What about a Grindor Human Alliance with Alice? Not sure yet.
Ok this doesn't mean much at all, but at least it's not a "No".

I know a HA Optimus Prime would be huge... but hey it shouldn't be bigger than the Ultimate Bumblebee toy. If HA Ironhide includes Lennox, I wouldn't mind HA OP to include Sam's parents or even a repaint of Sam holding the Matrix.