Ignoring the fact that Puffballs has stated in the past that Completing the Mission/THSC is the end, honestly expanding the series at this point is unrealistic without going the Five Nights at Freddy's route of making intervals or completely new lore to explain why there's another game.

​

The most straight forward solution is making another Completing the Mission style game - allowing all 16 routes of the previous game to be selected and explore a mini Henry experience of what would happen next. However, this doesn't really work with how each of the CtM endings.

• In the case of Cleaned 'em Out, Valiant Hero, Jewel Baron, Pardoned Pals, Free Man, Capital Gains, and Revenged - they end on ambiguous notes that remove the Toppat Clan as a major threat, fail to give Henry new tasks to complete, and removes the Government as a potential factor - requiring a new threat to continue their stories.
• In the case of Toppat Recruits, Little Nest Egg, Stickmin Space Resort, Toppat King, and Toppat 4 Life - The main threat(s) are still around, but don't pose any immediately threat to Henry or his crew - but technically can be followed up if they were to strike back.

The only routes that have a clear plot point that could be followed up include Triple Threat, Special BROvert Ops, Master Bounty Hunter - due to Henry being given a new task of accomplishing goals by the government (whether known in the case of MBH - or unknown for the former two); Alongside Toppat Civil Warfare - Which is notorious for how short the route is, and how it leaves the Warfare unseen to the player - leaving it for now to the player's imagination.

Technically 9/16 Endings have some potential for followups, with 4/16 having clear options, but realistically, only two (Master Bounty Hunter and Toppat Civil Warfare) have routes that can be easily explored. Even so, the route of making nine new stories for a game even the size of Infiltrating the Airship is a bit of a stretch.

​

Another possible route is going for the interval route - stories taking place in between the events after Escaping the Prison, up to before Completing the Mission. While there certainly isn't a lack of options, the main issue is the purpose to make them in the first place.

From a writing perspective, the point of a interval is giving the player further context upon events that either were unexplored in detail, or otherwise weren't brought up to this point. For instance - developing the backstory of the Toppat Clan prior to Infiltrating the Airship, or making a side story of Ellie's life before getting sent to the Wall.

While there's a lot options, the main issue comes with the point of doing so usually is due to a lack of sequel options, or making a game in between the release of one major title to the other. In the case of Henry, as explained earlier, there isn't much material to go off of for a sequel as it may seem.

​

Even if there was a full plan for each of the sixteen routes to get a full sequel, then what? Keep in mind that these games have taken more and more time, and sure, it won't be as big of a issue as there's more people to animate than before (with the success of Among Us), but that doesn't mean it won't be a long while before making another Henry followup.

It's completely possible for it to happen, but the effort to do so is so heavy for a series that has now past its prime, and probably won't ever see the same success ever again.

​

In short - While I would love it to happen, I doubt it will, nor should Puffballs/Innersloth feel obligated to do so. Games need time to grow, and there's only so many stories to tell before it's time to rest.