H1Z1, DC Universe Online, Everquest... that's a solid lineup of online games. Also, it's the resume for Daybreak Games. So... you know they know their way around MMOs and then some. With that in mind, who better to work on a Marvel MMO? And, apparently, that's exactly what's happening.
Daybreak Games Working on Marvel MMO
At this point we don't know anything about the game, other than the leaked concept art, which confirms its existence:
It should be noted, that Daybreak Games was previously working on a Marvel MMO 2 years ago, but have since cancelled said game. It could well be possible that the pictures in the Reddit post above are from back then, but that doesn't change the fact that Daybreak Games are working on a Marvel MMO.
So, should we get excited about this game? I'm not sure. I guess it depends on how you feel about DC Universe Online, because it will likey be similar to that. You should not go into this expecting something even remotely close to the quality of the Spider-Man game. Marvel's single-player games are amazing exactly because they are single-player. That narrative excellence doesn't usually translate well to multiplayer games.
Still, a new Marvel game is always exciting, and if you're more interested in the MMO aspect, then maybe this game is for you - it's basically The Last of Us turned into an MMO.