Will Smith and Tommy Lee Jones are no longer the Men in Black, therefore, for its spinoff they got some new people to put on the suits and sunglasses.
On June 14th, we will get know Chris Hemsworth, Tessa Thompson and Liam Neeson as the secret agents in Men in Black: International. Will it be as good? Without Frank the Pug, it is highly doubtful.
Seriously though, I think the way they edited this trailer, they made it look too serious. What made MIB such a hit, is that it was in on the joke. If they are not going to let loose, then it will be one and done franchise. If they do, then maybe we can get a few sequels.