Not that anyone here has easy access to Hasbro Pulse, but the left-over Transformers SDCC items will be on there at the in the first week of next month (apparently they are adding the SDCC items over the next 3-4 weeks, which would be really annoying if you wanted several items and have to keep going back on several different days)... but expect them to sell out before they become visible to the public, as "Pulse Premium" members will get to buy them a day before everyone else, and apparently everyone who joined the site when it launched, has a complimentary membership for the first year, which will cover these items.
Pulse Premium membership is US$50 per year ... and what does it get? It gives them free shipping within Continental US (which most of the big online stores do now over there, often without a huge amount spent), exclusive access to promotions & contests, and early-bird access to items like the SDCC left-overs. It sounds like a licensed club membership, but without any specific exclusive elements other than free shipping on all orders (Amazon Prime is a lot cheaper for free shipping over a certain amount... and Australia Post offers a similar scheme with an annual fee to get free shipping from selected partner businesses).