Mysterio won't have the fishbowl, because the comics did it. Sony and the MCU barely allow Spider-Man to wear his costume, in fact he spent a lot of his last solo movie without anything resembling his actual costume, and he had his mask off for most of Infinity War outside of his few action scenes, so they're definitely not going to allow the fishbowl. Between Sony hating the comics in general and the MCU loathing costumes that look anything like the comics in the post Phase 1 movies (even if a few people like Ant-Man have them, the MCU tries to stay far away from accurate costumes, although at least they do have heroes that wear costumes, unlike FOX movies), Mysterio getting his actual costume will be a miracle.
heck, even if he gets the fishbowl he'll probably wear it for all of 2 minutes, because most actors just have to show their face for every second they can in a movie about masked heroes and villains (with Karl Urban being the only actor to really discard that bullshit attitude, when he played Judge Dredd).
heck, even if he gets the fishbowl he'll probably wear it for all of 2 minutes, because most actors just have to show their face for every second they can in a movie about masked heroes and villains (with Karl Urban being the only actor to really discard that bullshit attitude, when he played Judge Dredd).