The following products are expected to be released after the box set, probably in a string of weekly releases in the months following the starter set release:
Contemptor Dread kit
Cataphractii Terminator squad (5 models)
Tactical Marines (10 models)
Praetor (1 model, clampack)
Centurion (1 model)
Destroyer/Assault Marines squad (5 models)
Support Marines (5 models)
Overall this is shaping up to be a pretty solid release schedule if the rumors can be believed and should be an exciting time for both old-school and newer HH players.
Age of Sigmar
The next set of releases for the Stormcast Eternals have been leaked, and I have added the images below. Prosecutors with Javelins and the trident look ace, and the Winged Archer Knight is easily my favorite model of the Stormcast Range so far. This is likely the last batch of Stormcast we will see for some time, as they are set to release the Battletome which is some sort of Codex equivalent. Hopefully this will detail some things about the stormhosts we have not heard much from, as beside the big three, we're msotly in the dark about the other color schemes and their personalities.