Well, finding new stuff, especially PCCs, has not been easy lately, so I bit the bullet a week & and a half ago and ordered a few items from HTS: Generations Kup & Scourge and PCC Skyhammer/Airlift and Undertow/Waterlog. I'm sure I'll never see the latter two at retail, and finding the first two won't be too easy either. I was disappointed that PCC Heavytread/Groundspike wasn't available, because I know he'll be equally unavailable. They also added PCC Over-Run (Dragstrip) after the order, but I'm not sure about him.
Really looking forward to Thundercracker and Wheeljack, too.