So who is the suited man? We'll have to wait for Agents of S.H.I.E.L.D. Season 5 for confirmation, but the Inhumans pilot may hold some clues. As mentioned above, the government will likely discover Attilan before the series wraps. They certainly came close in the pilot episode, where one of NASA's lunar rovers bumped into the city wall, which was disguised to look like empty space. Gorgon quickly took care of the lunar rover by stomping on it to destroy it -- but not before the rover captured some footage of his hoof. The scene featured Ellen Woglom's original character Louise, so we'll likely see more fallout from that scene as Inhumans progresses, but -- more importantly -- this puts Attilan on the verge of human discovery. S.H.I.E.L.D.'s mysterious suited man may very well have something to do with the fallout of this discovery.
Following the events of The Avengers, Earth has faced down one interstellar threat after another, and it seems safe to assume the government -- or someone affiliated -- developed a response in the event it happens again. While we, as an audience, are aware that the Inhumans are not in fact an alien threat, they would likely be viewed as such. S.H.I.E.L.D.'s mystery man, then, could be a part of a response team that was put together to defend against alien invasions, a S.W.O.R.D.-like initiative that monitors unusual activity in space as a sort of preventative measure. If S.H.I.E.L.D.'s mystery man is in any way affiliated with the government or its theoretical alien response team, we can draw the conclusion that that is who sent Coulson -- and potentially his team -- into space, possibly to keep an eye on the "alien" threat the Inhumans pose.
But why Coulson? Why his team? For one, Coulson and his team are capable agents with a penchant for getting themselves into -- and out of -- dangerous and unusual circumstances. For another, such a move would dispose of highly trained combatants that are considered dangerous, while also making them useful. In space, Coulson and his team wouldn't pose a threat to anyone but themselves. However, they could continue to work for the government by providing useful information. Depending on how dangerous the rig is, Coulson's trip to space could be considered something of a "suicide mission," in that he isn't expected to return. What's more, his final words in the Season 4 finale are, "Enough sightseeing. Get back to work," which suggests that he is working a job. This would be an excellent way for the government to get rid of a problem like Coulson's team, while keeping them in circulation.
If Agents of S.H.I.E.L.D. does pick up with an Inhumans crossover, that doesn't mean it would be a season-long story arc. Last year, the show broke the season up into three "pods," and the result was very effective. The first half of Season 4 explored "Ghost Rider" in one pod, while the second half was split into two pods: "LMD" and "Agents of Hydra." Should Season 5 take a similar approach, a potential Inhumans tie-in like the one explored above could be one pod, taking place before or after another storyline. Kicking off the season like this would likely make the most sense, as S.H.I.E.L.D. is rumored to premiere shortly after the Inhumans finale and could pick up immediately following.
Should Agents of S.H.I.E.L.D. premiere with an Inhumans crossover, it would open the series up to more storylines. For instance, the Kree are heavily involved with Inhuman affairs in the comics, so it wouldn't be surprising if they returned at some point on one or both shows. This could set the stage for Coulson to run into the ancient alien race once again. Two Kree soldiers were sent to Earth to investigate an Inhuman incident masterminded by Hive in Season 3, as he wanted to use their blood to make more Inhumans, so the Kree seem to be aware that there has been some Inhuman activity. Earlier this month, a Kree-like character was also spotted on the Agents of S.H.I.E.L.D. set, which suggests the Kree's return is indeed possible for Season 5.
Ever since its inception, Agents of S.H.I.E.L.D. has been very clear about its connections to the rest of the MCU. It wouldn't be surprising, then, to see the sophomore series jump on the Inhumans train, especially where S.H.I.E.L.D. introduced the concept to the MCU. A crossover between the two shows could offer S.H.I.E.L.D. a deeper, richer history, while setting up future storylines. What's more, should Inhumans prove to be unsuccessful, S.H.I.E.L.D. could serve as a vehicle to continue or conclude any unresolved story arcs. In the end, what better way to show that the MCU is still truly connected than to tie together two of Marvel Television's flagship shows?
The first two episodes of Marvel’s Inhumans debuted in IMAX theaters on September 1, kicking off a two-week run. On September 29, the show will make its broadcast debut on ABC. The network will show the eight-episode first season of Inhumans in its entirety, including content from the first two episodes not seen in the IMAX run. The drama stars Anson Mount as Black Bolt, Iwan Rheon as Maximus the Mad, Serinda Swan as Queen Medusa, Ken Leung as Karnak, Isabelle Cornish as Crystal, Eme Ikwuakor as Gorgon, Mike Moh as Triton and Sonya Balmores as Auran.
Returning to ABC this fall, Marvel’s Agents of S.H.I.E.L.D. stars Clark Gregg as Agent Phil Coulson, Chloe Bennet as Daisy “Quake” Johnson, Ming-Na Wen as Melinda May, Iain De Caestecker as Leo Fitz, Elizabeth Henstridge as Jemma Simmons, and Henry Simmons as Alphonso “Mack” Mackenzie.