Maybe Hasbro has hired Michael Bay to handle their press releases about the future of TF:A...
"Season Three is the last season."
"Yeah, there are some character models showing up - those were design ideas before we scrapped Season Four."
"We have some unused toy designs, but we don't know if they'll be released, since Season Four is a no-go."
"Ok, so we've changed our stance and just won't talk about Season Four now."
"Yes, new character models are showing up, but that doesn't mean we're gonna do season four..."
On the topic of this image, it does have several Powerglide-ish features, but it also looks like it's got heavy usage of tank treads on it... are we sure this is the plane-bot? Or, perhaps it's Powerglide's pre-aerial mode, before the Autobots realize that what they've learned through Project: Safeguard can be applied safely to other robots.