The only real stand out is the commandos - not really sure why they'd release them now. My first thought was not to 'flood the market' with Rebels if the next expansion is Endor (because Ewoks will take the generic unit slot), but unless they go against their usual policy re expansion compatibility they wouldn't be available for an Endor campaign, and that just seems silly.
Maybe they'll be like the ISBs, with an optional mission that slots into the mini-campaign. The relevant text block on their map sheet could say you get to add it to "[Title Redacted], the upcoming mini-campaign to be released after Jabba's Realm".