There's a good chance they will. Comic Con is a major platform for Marvel to promote their upcoming projects and interact with the fan community. But it could also depend on their schedule and priorities for that specific year.
One way is to follow the social media accounts related to Comic Con 2019 and the MCU. They often post updates and links for viewing the announcement. Also, some entertainment news websites might have coverage and links to watch it.
There's a good chance they are. Marvel has a history of participating in such events to showcase their latest projects and interact with fans. But it's best to check the official announcements for confirmation.
Well, it's quite likely. Comic Con is a major platform for Marvel to promote their upcoming movies, comics, and other related stuff. But it's also possible that they might have some scheduling conflicts or other reasons not to attend this particular year.
There's no definite answer yet. Marvel's decision to attend Comic Con 2022 could be influenced by a number of things, such as the availability of their talent and the promotion plans for upcoming releases.