I don't see them adding anything more. With starboost, it had exactly what the description stated it would. They don't always add every new feature to every new figure. Starboost has an ab art that the 42 and 43 don't. That most the others don't in fact. The mk3 has the removable plates. That's the feature/gimmick they advertised and promoted. You could not due the full ab art with those on, so like I said it would take a full redesign. Why would they go thru all that after selling it as it was/is? There may be some ab art we don't know see because we have not seen the full production release. But to count/bet/hope on them to add something you do not think is on the proto, that they have not put in the description...it's not really a good bet. Once that figure goes up for order they are not doing any major design changes. Minor, ones all the time. Tweaks due to production issues or what not. But a full on revamp of what was touted as a key feature? Not likely.