Not a gimmick line most members here will even look at, let alone buy, but a third wave of the Basic sized Stealth Force have been revealed.
Two motorcyles make up the third wave - Highwire and Knockout - both Autobots.

Wave 1 Stealth Force Basics had Bumblebee, Autobot Hound, Silverstreak, Soundwave.
Wave 2 only has Barricade added to the assortment, but the first wave don't seem to be flying off the shelves... so can't imagine this line going beyond wave 3.

Also shown at that link is official pics of one of the Minivehicles 2-packs - Enforcer Ironhide Vs Mixmaster, and Star Wars Wave 2 Clone/Tank.