Slingshot was left out of the original configuration of Combiner Wars Superion in favour of the the helicopter Alpha Bravo not all hope was lost: looking carefully at Firefly's jet mode it strongly resembles the missing original Aerialbot both looking like Harrier Jump Jets.
On 9th January 2015 Takara teased their Superion with 5 jets. On the 22nd January Unite Warriors Superion was revealed containing a white repaint of Firefly as Slingshot. I promptly pre ordered a set with HLJ, despite already having the other four toys, but later the same day a TRU computer listing for Slingshot & Wildrider was found. On the 23rd of March a Diamond website listing for Quickslinger & Brake-Neck, assumed to be the same toys under a different name, was located. The next day Hasbro teased them on their Facebook page before officially revealing them the day after. At midday EST on the 30th April an embargo was listed and many websites revealed galleries and availability information for Quickslinger and Brake-Neck. By then however certain online retailers who source their stock in the far east had already received their stock and dispatched them. My set from Kapow toys arrived May 2nd!
If you've got Firefly you know exactly what you're getting: this is the original toy with all the red, bar the chest, and all the grey turned white. The legs, shoulder joints, and combiner connector are now black. The head is a new mould much close to the original Slingshot.
Save for some black paint covering the panels on the outside of the fist this is pretty much dead on what you want and completes my Superion.
Future RepaintsThe obvious repaint for most Aerialbots is as their G2 counterparts. G2 Fireflight however looks very much like his original version, with the exception of some detail on the wings and a silver robot chest which is already hinted at here.
Quickslinger could be redone as the gold G2 Slingshot, though hopefully in a more resilient non GPS prone version!
Both are strong candidates for a Decepticon repaint, possibly as part of a larger sized Combiner Wars version of Sixwing. I find it incredible that 30 years after the first combiner was released we still haven't had a full sized Decepticon Air vehicle combiner, forms more aligned to the original forms of the 1984 Decepticons.