I think so.
The G2 Sideswipe reveal has blown away the BS about the licensing issue and the Autobot cars have been selling extremely well so there's no reason to think anything has changed.
A black Sideswipe repaint was always likely and several character choices that won't stand a chance of winning that poll doesn't mean Takara are changing the entire direction of the line, not that it's stopped some of the scaremongers at TFW from suggesting otherwise
The poll is clearly a way of testing the water to see what the demand would be for other characters....it's just too bad the likely winner will be one of the Primes as it'd be nice to see a completely new character even if I hadn't a clue about their history.
Takara never made any direct statement saying that MP20 would definitely be announced at the show but fan expectation and hype got in the way of that fact and this is why there's been the disappointment.
EDIT
It appears as if a snippet of info about MP20 has emerged,
The character is confirmed but can't be named yet.
It's someone who was thought to be tricky to obtain a license for.
Which means,
Mirage
Jazz
Wheeljack
Bumblebee
Any of the first 3 would be great, I couldn't give a damn about Bumblebee.