well, I don't think we'll get a siege windblade, and the fact that her comic version is using titans return is a pretty solid indicator.
So far we've only seen characters getting new bodies in siege, bumblebee, and her and cyclonus using prime wars trilogy molds
Bumblebee I'm betting is gonna be in the last part of siege, as a deluxe. It seems like his transformation is just his feet becoming the front of his car mode, his arms becoming the fins on the side, and his head tucking away. In fact, it's fairly similar to how reflector transforms now, just with different kibble. In fact, no wheels to be seen so he's definitely getting his hovermode, so I can definitely see them getting remolded into BB
But as for Windblade, the only way I can see them doing her is going the chromia route and retooling a POTP darkwing
everyone else is just so wide-chested.
More likely she'll be in the next line